Christopher Allen Lloyd (born October 22, 1938) is an American actor. He has appeared in theater productions, films, and television since 1961, and is best known for portraying Dr. Emmett "Doc" Brown in the Back to the Future trilogy and Jim Ignatowski in the comedy series Taxi, winning two Emmy Awards for the latter.
Lloyd came to public attention in Northeastern theater productions during the 1960s and early 1970s, earning Drama Desk and Obie awards for his work, and making his cinematic debut in One Flew Over the Cuckoo's Nest. Lloyd also starred as Commander Kruge in Star Trek III: The Search for Spock, Professor Plum in Clue, Judge Doom in Who Framed Roger Rabbit, and Uncle Fester in The Addams Family and its sequel Addams Family Values.
Lloyd earned a third Emmy for his 1992 guest appearance in Road to Avonlea, and won an Independent Spirit Award for his performance in Twenty Bucks. He has done extensive voice work, including Merlock in DuckTales the Movie: Treasure of the Lost Lamp, Grigori Rasputin in Anastasia, the Woodsman in the Cartoon Network miniseries Over the Garden Wall, and the Hacker in PBS Kids series Cyberchase, which earned him two further Emmy nominations. Lloyd has also been nominated for two Saturn Awards and a BIFA Award.
For Big City Green, he guest stared as the voice of Santa Claus in the episode "Green Christmas".