Marvel Cinematic Universe

Holden Radcliffe

9,724pages on
this wiki
Add New Page
Talk0 Share
"I believe that art and science are entwined. The Devil, and God, is in the details. I don't want the people to see my work and know it works. If they gave a second glance, I want it to be out of awe, not disgust."
―Holden Radcliffe to Jemma Simmons[src]

Holden Radcliffe is a former GT Agrochemical researcher whose theories and experiments on transhumanism got him fired from the company. He was kidnapped and recruited by Hive in order to recreate the Kree experiment which had created the Inhumans. However despite Radcliffe's enthusiasm, he struggled to perfect the experiment, inadvertently creating the Primitives. He was saved by S.H.I.E.L.D. and assisted them in defeating Hive.

Radcliffe reached a deal where he was eventually cleared of all charges, but with the condition that all of his research were submitted to approval and oversight. However, despite becoming friends with Leo Fitz and Jemma Simmons, Radcliffe secretly began working on Life-Model Decoys. When the mystic Darkhold entered the lives of the team, it secretly corrupted Radcliffe, and gave him the desire to use the book for his work, putting into motion a plan to swipe it from S.H.I.E.L.D. using his creation Aida and an LMD of Melinda May as his pawns.


Early Life

Transhumanism Work

"He was lead researcher on parasitic organisms at the agrochemical lab we raided, based on his expertise we believe he is the key to finding a cure for Daisy."
Jemma Simmons[src]

Radcliffe's S.H.I.E.L.D. file

Doctor Holden Radcliffe was a highly successful scientist at GT Agrochemical, however he was dismissed from the company when his complete obsession with Transhumanism were deemed to be inhumane. Shortly after his dismissal, Radcliffe's old lab was attacked and destroyed by HYDRA, with all his former co-workers being killed. Radcliffe went to Romania to hide out and continue his research among others who shared his passion for Transhumanism.[1]

Learning of Inhumans

Meeting Fitz and Simmons

Holden Radcliffe Singularity 5

Radcliffe meets Jemma Simmons

"I see how it's surveillance capabilities are appealing, but there was a company that had something eerily similar, Cybertek, heard of them? Turns out they were HYDRA. They connected explosives to soldiers eyes, violence for violence sake, an ugly misuse of science."
―Holden Radcliffe to Jemma Simmons[src]

While hiding out in Romania, Radcliffe was informed by Anon that two scientists were looking to sell technology to him. In order to test if Leo Fitz and Jemma Simmons were truly confident in their Transhuman product, Radcliffe strapped himself on a operation table and ordered Anon to retrieve the two scientists and tell them to replace his false eye with their technology, not telling them that the eye was not real. When Simmons went to apply the anesthetic to his eye, she realized that the eye was not real. Radcliffe then revealed himself to the pair.

Holden Radcliffe Singularity 16

Radcliffe questions Leo Fitz's motives

Radcliffe went on to question the two about the Eye Implant, noting that while he was impressed by its technology, he knew that Cybertek had similar technology and they had been revealed to be connected to HYDRA. Simmons assured that they did not work for HYDRA but S.H.I.E.L.D., yet Radcliffe dismissed the comment, saying that the two organizations are the same. Eventually Radcliffe realized that Fitz was in communication with someone and ordered Anon to activate an EMP before calling security and escort the pair out.

Holden Radcliffe Singularity 17

Radcliffe argues with Leo Fitz about Inhumans

As Fitz and Simmons pleaded with Radcliffe to reconsider, Simmons was taken away by his men before Fitz was able to fight them off and told Radcliffe that he had to hear him out. Fitz revealed that there was a creature called Hive that was recruiting Inhumans and they needed his help to stop it, promising he could help Radcliffe discover the truth. Suddenly the lab's doors suddenly burst open and Daisy Johnson and Alisha Whitley stormed in. Whitley took away the startled doctor, while Johnson attacked Anon and threatened Fitz.[1]

Kidnapped by Hive

Holden Radcliffe Singularity 23

Radcliffe is kidnapped and questioned by Hive

"We've only just begun that kind of DNA modification, to make something of your kind that's... We can only dream."
"You don't need to dream anymore."
―Holden Radcliffe and Hive[src]

Radcliffe was taken away to Union City where he was introduced to Hive, and was astonished to be surrounded by the Inhumans. Hive then offered Radcliffe the chance to initiate an experiment that originally created Hive, noting that the technology of the humans now matched that of the Kree and Radcliffe was the best candidate for the job. Although Radcliffe was uncertain that the task could be done, Hive assured him that it would be in his best interest to try and succeed.[1]

Failed Experiments

Failed Experiments 3

Radcliffe recreates the Kree experiment

"The genetic make up of Inhumans in incredibly complex, we were bound to run into complications!"
"You assured me this would work."
"Yes, it would have if I'd been provided with the right ingredients."
―Holden Radcliffe and Hive[src]

Hive provided Radcliffe with three volunteers from HYDRA once his experiment was ready, with Radcliffe explaining to Hive and Daisy Johnson that he had managed to put Terrigen Crystals into the Kree blood to ensure that the subjects underwent Terrigenesis at the same time. However as soon as the experiment went underway, Kirk Vogel and the other volunteers began screaming in agony before they skin and bones melted away as their bodies reacted to the experiment.

Failed Experiments 5

Radcliffe's life is threatened by Hive

As the corpses of the volunteers were taken away to be disposed of, Radcliffe desperately tried to explain to Hive that the experiment had only failed because the blood he had been supplied with had come from the dead body of Grant Ward and they needing the blood of a living Kree. Hive responded by grabbing Radcliffe by the throat as he begged for his life, promising that he could make the experiment work as he promised that he wanted it to work in order to change the world. Hive let Radcliffe go before walking over to the Kree Orb, when Radcliffe asked what it was, Hive did not answer but explained that Radcliffe should be terrified now.[2]

Encounter with the Kree


Radcliffe is attacked by a Kree Reaper

"You were going to handle this thing! Now we're both gonna die!"
"No ones dying here today!"
―Holden Radcliffe and Daisy Johnson[src]

Hive used the Kree Orb to summon the Kree Reapers to Union City so Radcliffe could use their blood to complete his experiment. While in his lab, Radcliffe was confronted by one of the Reapers whose blade was covered in Alisha Whitley's blood. Radcliffe was defended by Daisy Johnson who battled the powerful Kree warrior while Radcliffe looked on in fear, eventually Johnson was able to outwit the Kree and broke it's spine.


Radcliffe begins draining the Kree's blood

Radcliffe was ordered to drain the Kree's blood, but as he was doing this, he and Johnson were confronted by Alphonso Mackenzie who had come to convince Johnson to return to S.H.I.E.L.D.. Radcliffe continued his work until Mackenzie used a Splinter Bomb to destroy the Kree's body, leading to Johnson attacking her former ally and friend. Mackenzie was rescued by his team mates who escaped in the Containment Module. Radcliffe patched up Johnson's wounds before she revealed to Hive that she had Kree blood in her veins.[2]

Creating Abominations


Radcliffe checks on Daisy Johnson's recovery

"These Primitives are an Abomination of science and a very poor reflection of my talents."
"They are not abominations, they're part of me and the Inhuman race. I want you to make more."
―Holden Radcliffe and Hive[src]

Radcliffe checked on Daisy Johnson as she continued to give up her Kree blood for their experiments, ensuring that she was recovering and staying as healthy as possible while Radcliffe advised her to stop for the day. Radcliffe told Johnson to drink juice to recover but was so tired he almost gave her her own blood back, claiming that he would rest once he was dead, although insisting he did not want any of them to die.


Radcliffe discusses his experiments with Hive

Leaving Johnson to continue her recovery, Radcliffe took Hive into his lab and informed him that he was now confident that the experiment would work as he now had the right ingredients compared to the last test where he had killed Kirk Vogel. Radcliffe assured Hive that everything was in place to complete their experiment and create new Inhumans and all they needed at this stage was new volunteers, which Hive assured him that he was sourcing already, claiming that his choice of volunteers he considered to be a gift for Johnson.

Failed Experiments 10

Radcliffe sees the arrival of the Watchdogs

When the volunteers Hive had spoken about earlier finally arrived, Radcliffe was horrified to learn that they were kidnapped members of the Watchdogs; when Radcliffe questioned Hive about this he explained that they sometimes needed more motivation while Hellfire beat Pete Boggs with the butt of his gun while mocking him. Once he confirmed that he was almost completely confident about the experiment, Hive ordered Radcliffe to fill the shipment container the Watchdogs were in with Terrigen Mist. Radcliffe and the others then listened as the men screamed in fear and pain as they underwent their forced Terrigenesis.


Radcliffe is horrified by creating the Primitives

Eventually the doors to the container were opened, revealing the men had mutated into hideous Primitives, horrifying Radcliffe. Hive however was impressed by the result and ordered the Primitives to show off their strength and bring Radcliffe to him on his knees. Radcliffe begged for his life as he insisted that he could improve upon the experiment, although Hive claimed that they would do fine while Radcliffe argued that the Primitives were abominations to science while Hive insisted that he wanted Radcliffe to create more.


Radcliffe witnesses Lash attacking Hive

As Radcliffe was ordered to drain Johnson on the last of her blood, he witnessed Lash arriving on the base and attacking Hive, leading to the exhausted Johnson getting up to try and defend her leader. As Lash went to kill Hive, Radcliffe explained that Hellfire had left to collect beer and watched helplessly as Johnson tried in vain to stop Lash with a weak shockwave before collapsing. Radcliffe then escaped the base before witnessing Lash saving Johnson from Hive's mind control before being killed by Hellfire.[3]

Saved by S.H.I.E.L.D.


Radcliffe watches Hive's plans unfold

"Did S.H.I.E.L.D. send you?! Did they?!"
"Yes, I'm with S.H.I.E.L.D.!"
"Oh thank god, take me with you, you have to, please!"
―Holden Radcliffe and Melinda May[src]

Along with Hive, Radcliffe was brought to a Missile Silo where the Inhumans quickly subdued the United States Armed Forces soldiers guarding it and prepared to launch a missile filled with Terrigen Mist into the atmosphere. However while Radcliffe watched in horror, the missile was overridden by S.H.I.E.L.D. and Hive demanded that Radcliffe fix it, threatening to devour him if he failed. Despite insisting he was not an expert with these systems, Radcliffe agreed due to his terror of Hive.


Radcliffe attempts to work with Primitives

Taking two Primitives with him, Radcliffe attempt to figure out how to fix the damage done by S.H.I.E.L.D. and allow the missile to be launch, merely to protect himself. Despite being at first frustrated by the Primitives' lack of brain power, he quickly learned they could still use basic tools due to their memories of their own past lives before undergoing Terrigenesis. Radcliffe was able to get the Primitives, who he nicknamed Ronald and Ronald II to use their strength to get into the computer system for him to begin work at getting past the hack and returning control of the entire military base to Hive.


Radcliffe is confronted by Melinda May

However before Radcliffe could begin fixing the computer, he was confronted by Melinda May. Although Radcliffe quickly surrendered, the Primitives attacked the agent and they engaged in a brief fight, during which May dropped her gun. While May was able to defeat the majority of the Primitives, Radcliffe aided her by shooting the final one before taking aim at May, Radcliffe demanded to know if she was with S.H.I.E.L.D. and begged for her help. With then witnessed Giyera using his powers to steal the War Head and escape the base onboard the HYDRA QuadCopter with Hellfire.

Absolution Team Shot

Radcliffe and S.H.I.E.L.D. capture Hive

Escaping outside with May, Radcliffe found the other soldiers had been saved by Yo-Yo Rodriguez and ran to Lincoln Campbell and Alphonso Mackenzie's aid. However they were soon followed by Hive who was recovering from having his mind overloaded by the Theta Brain-Wave Frequency Machine. While Radcliffe watched, Rodriguez was able to use her super-speed to drop a case around Hive and trapped him with Suspension Gel. Having confirmed Hive had been defeated and captured, Radcliffe could not hold back his utter delight as he proceeded to let out a loud cheer in celebration.


Radcliffe is insulted by General Glenn Talbot

Radcliffe was then taken to the Playground to be questioned about his work while being Hive's hostage. Once he arrived, Radcliffe was confronted by Brigadier General Glenn Talbot and Director Phil Coulson who both demanded that he reverse what had been done to the men who had been transformed into the Primitives, however Radcliffe made it clear that he had only done it because he was a hostage fearing for his life and that there was no way to turn them back into normal Humans again. Talbot then threatened to have Radcliffe turned into a Primitive himself if he failed however.[4]

Attack of the Primitives


Radcliffe attempts to escape the Primitives

"Crank the heating up to a hundred degrees Fahrenheit and we're free to move about as we please."
"You so want us to go out there on a hunch and hope those things don't rip us apart?"
"It's not a hunch, it's science. It's a science hunch."
―Holden Radcliffe and Alphonso Mackenzie[src]

As Radcliffe learned the Playground had been bombed with Terrigen Mist transforming agents into Primitives,[4] he was forced to try and explain what they were capable of to Phil Coulson and the others, insisting it was not his choice to create them. As they were speaking it was learned that Hive had escaped and the Primitives had made their way inside.


Radcliffe tries to save Yo-Yo Rodriguez

When the lights were cut out throughout the base, Radcliffe was forced to escape into a small room with both Coulson and Lincoln Campbell, however they were soon joined by Alphonso Mackenzie who was carrying the wounded Yo-Yo Rodriguez, who had been shot by the Primitives during the attack. Needing to quickly find a way to stop Rodriguez's bleeding before she died, Radcliffe came up with their only choice, to use a blow torch to seal her wound. Despite all of Mackenzie's objections, it was agreed to be the right move and Rodriguez was saved despite experiencing great agony.


Radcliffe inspects Phil Coulson's fake hand

With Rodriguez now safe, Radcliffe and the other S.H.I.E.L.D. agents looked for a way to defend themselves from the Primitives. As he was exploring, Radcliffe came across the Backscatter X-Ray Eye Implant and noted what other inventions Leo Fitz had created. It was at this moment that Coulson revealed to Radcliffe that he was in fact using a Prosthetic Hand, much to Radcliffe's great amazement as he examined the technology which had impressed him so much. While Radcliffe was speaking to Coulson, Mackenzie then noted how the heating across the base had seemingly been raised.


Radcliffe tries to sneak past the Primitives

Considering the possible reasons for this, Radcliffe concluded that it must have been Jemma Simmons who had managed to dial up the heating as a way to blind all of the Primitives, who relied on heat signatures to see much like a snake. Believing his own theory to be correct, Radcliffe decided to test it by opening the door and stepping out into the main hallway, despite now being highly nervous that he could possibly be wrong. Radcliffe stepped outside to find himself face to face with a Primitive, however to his relief, he was proven correct as the Primitive failed to see him at all.


Radcliffe watches a Quinjet arrive outside

With their plan in place, the group ran to Coulson's office where they regrouped with Simmons, with Radcliffe noting that he had worked out why she turned up the heating and claiming they would be a good team. Seeking to stop Hive before he could unleash all of the Terrigen Mist over Earth, Coulson called in a Quinjet in order to catch up with Zephyr One which Hive had stolen. As the Quinjet arrived, Radcliffe noted how impressed he was by their methods. Radcliffe stayed with Rodriguez while Hive was killed along with Campbell who had sacrificed his own life to save the world.[5]

Life-Model Decoys

Bringing Aida to Life

Third Season Finale 8

Radcliffe prepares to create L.M.D.s

"This is based on an old S.H.I.E.L.D. program, poor kids have had a lot of friends die, maybe they didn't have to."
"Is that what we're celebrating today? The inclusion of your new colleague Fitz on this project?"
"No Aida, today, today's your birthday."
―Holden Radcliffe and Aida[src]

With Hive having been killed by S.H.I.E.L.D., Radcliffe returned to his research, working alongside Leo Fitz and Jemma Simmons a lot, gaining a deep affection for the pair. Eventually all charges against Radcliffe regarding the creation of the Primitives were dropped and Radcliffe returned to his office and spoke to Aida, explaining that his time with Fitz and Simmons had given him the idea to finally create Life-Model Decoys in order to protect them from losing more friends during their fights to protect the world from danger.[5]

Pitching Aida

Radcliffe Explains AIDA-4x01

Radcliffe presents Aida to Leo Fitz

"I know the dangers, that's why I've been reticent to divulge. I don't know these new people at S.H.I.E.L.D., but a weapon is absolutely not the idea!"
"Well then why? What's she for?"
"Well I'll let Aida tell you herself."
―Holden Radcliffe and Leo Fitz[src]

Having completed his first working model of Aida, Radcliffe invited Leo Fitz to his home under the pretence of watching a football game, although Jemma Simmons could not make it due to working with Jeffrey Mace. However shortly after his arrival, Aida glitched and greeted Fitz without clothes, forcing Radcliffe to explain that he had built a Life-Model Decoy, with Fitz furiously reminding Radcliffe how this was not allowed under S.H.I.E.L.D.'s guidelines for him.

AIDA Explains Her Purpose-4x01

Radcliffe explains Aida's true purpose

Radcliffe explained he had been inspired by the work done on Phil Coulson's Prosthetic Hand to create a perfectly realistic robot. As their conversation continued, Fitz noted how they could have another situation like Ultron if they were not careful. Radcliffe insisted Aida was not a weapon but was intended to be a shield and decoy to protect other S.H.I.E.L.D. agents from harm in the wake of Lincoln Campbell and Antoine Triplett's deaths. Despite his fears, Fitz agreed to help complete Aida, but insisted that they keep it a secret from Simmons and Mace for now until she was perfect.[6]

Killing Melinda May

Uprising 12

Radcliffe works with and talks to Aida

"Think of her brain as a computer that's been compromised by bugs and glitches, if we shut it down and reboot it, then the parts of her brain that have been hyper activated should reset back to default."
"This is crazy."
"Without a doubt, but we're out of time and out of options."
―Holden Radcliffe and Jemma Simmons[src]

Radcliffe was contacted by S.H.I.E.L.D. and informed that they were bringing Agent Melinda May to his home to attempt to save her life due to her heart going into overdrive in the wake of encountering Lucy Bauer. Radcliffe ordered Aida to assist him in getting everything prepared, apologising when he had gotten overly snappy at her and explaining some of his English terms to her. Once they had gotten everything prepared ready for May's arrival, Radcliffe explained that he would have to store Aida away again as she was still not allowed to be seen by S.H.I.E.L.D. agents.

May eventually arrived with Jemma Simmons and Radcliffe discovered that she was having a complete mental breakdown, screaming at him and the other people in the room as if she could see demons engulfing them. Once May was put to sleep, Radcliffe and Simmons discussed what had caused this, with Simmons noting that Alphonso Mackenzie believed she may have been touched by a ghost and they currently did not have a better theory. Simmons then explained that based on the case of Chen, they had only six hours until May would die.

Simmons and Radcliffe-4x03

Radcliffe and Jemma Simmons hunt a cure

Using a device called the Framework, Radcliffe was able to create a 3D model of May's brain for them to examine in order to try and find some understanding of what was happening to her. Studying the map of her brain, they were able to figure out the part of the brain that was giving her terrible hallucinations and set about curing them. As they quickly began to run out of time as May began losing control, Radcliffe proposed the only idea he had, to kill May in order to reboot her bring and then revive her just before her brain completely shut down, which could possibly leave her brain dead.

Despite her many objections to the concept of killing one of her closest allies, Simmons soon accepted that Radcliffe was correct that this was the only way to save May, and injected her with poison, killing May. Radcliffe watched his Framework monitor closely to ensure that her brain function was back to normal levels. As her brain just about reached it's correct levels, Radcliffe told Simmons to get ready with the defibrillator in order to revive May before too much damage could be done. Still watching the screen, Radcliffe waited for the last moment and told Simmons to revive May.

However at this moment, the Blackout Attack reached Washington, D.C. and cut out all of the power in the Radcliffe Residence, leaving the defibrillator useless and May with seemingly no way of being revived. With no other choice, Simmons began desperately performing CPR on May while Radcliffe disappeared to try something different, although incredibly risky. Radcliffe returned to Aida and took her battery out, using that to power the defibrillator. The plan worked and the defibrillator was given enough power to revive the highly confused May, much to Simmons and Radcliffe's delight.[7]

Aida's Greatest Test

To be added

Work with the Darkhold

"Look, if the internet is a garden hose, this book is Niagara Falls, blasting the universe's deepest thoughts through your eyeballs."
"It's a piece of technology, a tool."
"So's a grenade, until it's in the hands of a child."
―Holden Radcliffe and Melinda May[src]

To be added

Tricking S.H.I.E.L.D.

To be added


To be added

Powers and Abilities


"Bird's visual acuity is superior to mammals; I got envious."
―Holden Radcliffe[src]
  • Enhanced Sight: Radcliffe replaced his right eye with a synthetic prosthesis based on a bird's, granting him enhanced vision, as part of his beliefs in applying science to follow the discipline of transhumanism.


This section requires expansion
  • Master Scientist: To be added


This section requires expansion
  • Smith & Wesson M&P: When S.H.I.E.L.D. agent Melinda May burst into the maintenance room of the silo where Radcliffe was held, she dropped this pistol after attempting to eliminate some Primitives. In self-defense, Radcliffe picked up the pistol and saved May by firing at a Primitive that was about to kill her.





Appearances for Holden Radcliffe

In chronological order:


  • In the comics, Holden Radcliffe was the founder and owner of the Holden Radcliffe Corporation, obsessed with developing androids as combat soldiers.


Transparent AOU Logo
The Marvel Cinematic Universe wiki has a collection of images and media related to Holden Radcliffe.
Transparent AOU Logo
The Marvel Cinematic Universe wiki has a collection of quotes related to Holden Radcliffe.

External Links

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.

Also on Fandom

Random Wiki