With Rooster Teeth, he is the creator and director of gen:LOCK, a 3D animated mecha sci-fi show premiering in January 2019. He has also worked on reality game show The Gauntlet, as well as being lead compositor on Red vs. Blue Seasons 9 and 10. His other work includes director of photography on various live-action projects, post-production supervisor and editor.
Prior to his work with Rooster Teeth, Gray worked on various films, anime, television series and video games, both in voice acting roles and visual effects.
- Haddock is one of three members of Volume 1's cast (the others being Shannon McCormick and William Orendorff) to have had previously done anime voice work. Haddock's most notable role was playing Sannosuke Sagara in the English dub of the Rurouni Kenshin OVAs, as well as the movie. He has also provided voice work for Lei Wulong of theTekken motion picture, Guyver and Oreldo in Pumpkin Scissors, amongst others.