Christopher Lloyd is an American actor and voice actor. He is notable for playing Doc Brown in the Back to the Future franchise, and Judge Doom from Who Framed Roger Rabbit, the latter of which is referenced in Hacker's "Meet the CyberSquad" bio.
Lloyd is prone to gesticulating while voice acting for Cyberchase. He states that his movements have sometimes been filmed and used as reference for Hacker's animation.
- Christopher Lloyd Talks Voice Over vs. Live Action. Amanda Anderson. YouTube.