Hello I am Christopher Lloyd an actor and I have appeared in many theater productions, films, animated shows video games and on television since the 1960s. I am known for portraying Dr. Emmett "Doc" Brown in the Back to the Future trilogy (1985–1990) and Jim Ignatowski in the comedy series Taxi (1978–1983) and also Judge Doom in the fantasy comedy film Who Framed Roger Rabbit (1988).