"You know, everything that we teach them about being good human beings that's what this comes down to. This is why I took this job. This is why we are here and I'm not writing apps in Silicon Valley. How am I supposed to look these guys in the eye, knowing that I didn't have the guts to do the right thing?"
―David Lieberman to Sarah Lieberman[src]

David Linus Lieberman is a former National Security Agency analyst and a former member of the Rising Tide who operates under the name Micro. A legendary hacker, Micro faked his own death to hide from his former agency and continue his work of exposure of the government's secret affairs. Seeking to return to his life, Micro recruited Frank Castle under the promise that they had mutual enemies. Micro helped Castle discover the conspiracy which had led to the massacre of his family, eventually learning that Castle was betrayed and William Rawlins was responsible. As they closed in with their plans, Micro's family was threatened by Rawlins and Billy Russo, forcing Micro out of the shadows as he and Castle managed to trick their enemies and finally kill them all, allowing Lieberman to return to his old life with his family.


Family Times

To be added

Crime Scene Junkie

Assisting S.H.I.E.L.D.

"One of my sources, this guy Micro, he's kind of a crime-scene junkie. He came across something."
Skye to Phil Coulson[src]

For a month, Phil Coulson had Skye try to decrypt the symbols that John Garrett had written. She looked into the Rising Tide for help to no avail until Micro alerted Skye of a murder in Rhinebeck, New York, where the mysterious symbols were carved into the victim's corpse.[1]

First "Death"

David getting confronted by Carson Wolf

Lieberman is confronted by Carson Wolf.

"Cell phone saved my life. I went underground. They, uh, rewrote the narrative. Planted evidence, painted me as a traitor. Picked my life apart. Made life hell for Sarah. For our kids."
―Micro to Frank Castle[src]

After it was revealed that it was David who was leaking the information on Kandahar, the Homeland Security sent out a hit squad lead by William Rawlins' ally Carson Wolf hit squad approaching behind him. He got out of the car and began to flee until he was corned on a pier. Wolf claim he had a gun and shot him in front of Sarah. He fell back into the river and the agents thought they killed him. However, it is revealed that it was his phone that saved him.

Strange CD

Micro CD

Micro's CD is recovered by Frank Castle

In 2015, Micro sent a footage to former Cerberus Squad member Frank Castle. Having found the one responsible for his family's death, and now he has found closure, Castle returned to his abandoned home with the goal to set it on fire. Before he torched the house he punched a photo of him and his former United States Armed Forces platoon just to remove the photo from the marker and retrieve a disc.[2]

Interacting with Castle

Micro calling Frank

Micro calling Frank Castle

"You got the wrong guy."
"Yeah, I don't think so. Unless I'm not talking to Frank Castle? You know, let's not waste time. You're Frank Castle, right? Frank Castle, the dead man?"
"Makes two of us now."
"You're more right than you know. You're not the only ghost in this town, Frank."
Frank Castle and Micro[src]

Micro waited atop Graniteville Diner and phoned Frank Castle through the landline. The two conversed briefly about Castle's whereabouts and telling him that he needed him. After Castle left the diner and tried to locate Micro, he discovered a gift of a cellphone for communication.

Two Dead Men pic

Micro bound to the chair by Castle

Returning to his hideout, Micro placed his gun back underneath the desk and sat in his chair, unsure what to do. However, he soon met eyes with a living Frank Castle, whom he greeted by name. Before he could say more, Micro was knocked unconscious, stripped down of all of his clothes, and bound to the chair by Castle.[3]

During the torturous interrogation, the monitors had a set countdown. Initially, Micro warned Castle that the countdown led to a delayed bomb explosion, informing him that if he did not input a password, they would both die.[4]

Helping Castle

Castle lets Micro reset the countdown. However, Micro uses the distraction to inject Frank with heroin. Frank collapses. When he comes around, Micro tries to convince him that they need to team up.

Micro needs help

Micro asking Frank for help

Micro tells Frank that Cerberus is totally off the books. No record of it exists, meaning that it was not approved by Congress and therefore illegal. Frank agrees to work with Micro on one condition, the targets are all killed, with no exception or pleads for a trial, which Micro agrees to.

Micro informs Frank about the Homeland Security operation to take down the Greeks and the weapons shipment. Frank heads to a bodyshop where a gang is torturing two men. One is dead, but Frank takes out the gang and steals two vehicles, a sports car, and a van.

Micro begins to have second thoughts after seeing the aftermath of Frank's battle, but Frank refuses to let him off the hook. Micro arrives in the Mustang and they trade vehicles. Eventually, Dinah figures out the video is looped and heads out on her own. Dinah spots them and gives chase, but Frank blocks her and starts to play chicken with her.

Micro is annoyed at Castle's rescue of Madani because she now knows he is alive. Castle is angry at Micro for causing the crash in the first place. Castle leaves to go to the Lieberman Residence. Castle fixes Sarah Lieberman's headlight with Leo. 

Curtis removes the arrow from Frank's shoulder and patches him up. He also berates Micro for dragging Frank into this mess when he was trying to turn his life around. Micro informs him that his friend is dead and Frank worries about making good on his promise to Gunner. Micro tells him that he has made arrangements for Gunner to receive a decent burial.

Castle and Micro plan their infiltration of the base where Morty Bennett is stationed. They plan to use him to get Agent Orange's name. Frank is worried about coming across a soldier who is only doing their duty and what he will have to do to complete the mission.

Micro and Frank talk because Micro sees an end to his self-exile. He hopes that his family can forgive him for pretending to be dead for a year. Frank tells him not to mention that he's been using cameras to watch them all that time.

Meeting Madani

"I'm here because I hope I'm right and you're not one of 'em. I can give you the names of everyone involved in Kandahar. The CIA operation was off the books. It was, uh, totally illegal. The heroin was funding. Your guy Zubair, he caught wind of it, and, uh, they painted him as a terrorist, pulled him from his house, executed him."
"And you can prove all this?"
"Mm. I still have the video files. But you need Frank."
―Micro and Dinah Madani[src]

Micro sat next to Madani while she had a drink at a bar and offered her another. He is dismissed by Madani as another random guy until Lieberman asked her about her condition since Stein's death; Lieberman then revealed a gun to her, identifying himself as Micro, the hacker who sent her Zubair's execution video. He revealed that he can provide her more names of those involved in Kandahar, including William Rawlins. When she pressed him to continue, he told her that she needs Castle's testimony, as he was present during the torture. However, only a few minutes later, the two watched, as the news reported on Castle, whom was identified through dashcam footage and called him the terrorist behind Senator Ori's attempted assassination.[5]

Official Testimony

"My priority is my family. My wife. My son. You help me get 'em back, I'll give you what you want."
"Yeah, what do I want?"
"You want evidence proving William Rawlins killed Ahmad Zubair. You want a video. A video that I already sent you, which you carelessly managed to lose. A video that already got me killed once. [...] In the end. I want my family safe. Help me get them back, and I'll give you everything you need. Not before."
―Micro and Dinah Madani[src]

hly skilled hac

Second "Death"

"Nothing about this looks good. Sarah and Zach?"
"They're doing okay, all things considered."
"You mean considering they just saw me die?"
"Hey, this was your idea. We told them you were okay as soon as we got them out of there."
―Micro and Dinah Madani[src]

To be added

Return to Family Life

Goodbyes with Frank Castle

To be added


To be added


  • Master Hacker: Micro is a highly skilled hacker and one of the members of the Rising Tide hacktivist group. He was able to aid Frank Castle throughout their respective endeavors in clearing their identities and has kept surveillance over his family in his Micro's Hideout.
  • Tactician: Micro has used his hacking ability as well as his knowledge of some technological gadgets to strategize thought-out plans while working alongside Castle. He has also constructed and executed a "fake-death" plan with Madani, so that he could be reunited with Sarah and his children.



  • SIG-Sauer P250 Compact: Lieberman kept this handgun in his hideout in order to protect himself, and began to carry it while trying to contact with Frank Castle. Lieberman pulled the gun when Curtis Hoyle startled him, but returned to the hideout as Castle had planned, and placed the handgun in its hidden holster before Castle revealed himself. Castle subsequently took it from there, but returned it when both of them became partners, noting that the gun had not been properly maintained.
    Lieberman subsequently carried it whenever he left the hideout and believed he should need, especially when he went to meet Dinah Madani behind Castle's back, intimidating her with the gun in order to make her listen to him.

Other Equipment

  • Cellphone: Micro tends to utilize the use of cellular devices to communicate with Castle.
  • Micro's Drone: During their search for Gunner Henderson, Micro made use of a multi spectrum aerial drone to survey the wooded areas where he and Castle were located, especially when soldiers were confronting them. He would later use this same drone to aid Castle into infiltrating and escaping Fort Bryon to hack Morty Bennett's cellphone.






Appearances for David Lieberman

In chronological order:


  • In the comics, David Linus Lieberman, also called Microchip, was the hacker and armorer of the Punisher, who eventually became his enemy.
  • His password for his computer is "Zach@ndLeo" the names of his children.[4]
  • Lieberman's blood type is O-, as he claimed to be a "universal donor."[6]

Behind the Scenes


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The Marvel Cinematic Universe wiki has a collection of images and media related to Micro.

External Links