Christopher Lloyd (born October 22, 1938)  is an American actor, voice actor and comedian best known for his roles as Emmett "Doc" Brown in the Back to the Future trilogy , Judge Doom in Who Framed Roger Rabbit (1988) and Uncle Fester in The Addams Family (1991) and its sequel Addams Family Values (1993).
Christopher Lloyd is an American TV screenwriter and producer. Lloyd is co-executive producer and co-creator of the TV series Modern Family , which he produces with Steven Levitan . Prior to that, Lloyd had an extensive career on many series, including the award-winning Frasier . He has won 12 Primetime Emmy Awards for his work on Frasier and Modern Family .