He was also the stunt double for Iain De Caestecker in the Agents of S.H.I.E.L.D. episodes The Magical Place, T.R.A.C.K.S., The Only Light in the Darkness, Beginning of the End, One Door Closes, Laws of Nature, Purpose in the Machine, Maveth, The Team, The Singularity, Broken Promises, Self Control, Fun & Games, Together or Not at All, The Devil Complex and Rise and Shine and Cesar A. Garcia in the Runaways episode Reunion.
- Justin Gant also portrayed Lead Supression Specialist in the PlayStation Network production Powers. He was also a stunt performer, a utility stunts performer and a stunt double for Noah Taylor in the series.
- Justin Gant was a stunt double for Cesar Garcia in the Hulu production Runaways.
- Justin Gant was a stunt performer in the comic book adaptation The Walking Dead.
- Justin Gant was a stunt performer and a stunt double for Ross McCall in the comic book adaptation Fear the Walking Dead.