Christopher Allen Lloyd (born October 22, 1938) is an American actor, known for playing larger-than-life characters across theatre productions, films, and television shows since the 1960s, particularly Emmett "Doc" Brown in the Back to the Future trilogy (1985–1990) and "Reverend" Jim Ignatowski in the comedy series Taxi (1978–1983), for which he won two Emmy Awards. Lloyd came to public attention in Northeastern theater productions during the 1960s and early 1970s, earning Drama Desk and Obie awards for his work. He made his cinematic debut in One Flew Over the Cuckoo's Nest (1975) and went on to appear as Commander Kruge in Star Trek III: The Search for Spock (1984), Professor Plum in Clue (1985), Judge Doom in Who Framed Roger Rabbit (1988), Uncle Fester in The Addams Family (1991) and its sequel Addams Family Values (1993), Switchblade Sam in Dennis the Menace (1993), Mr. Goodman in Piranha 3D (2010), Bill Crowley in I Am Not a Serial Killer (2016) and David Mansell in Nobody (2021), and its sequel Nobody 2 (2025). Lloyd earned a third Emmy for his 1992 guest appearance as Alistair Dimple in Road to Avonlea, and won an Independent Spirit Award for his performance in Twenty Bucks (1993). He has done extensive voice work in productions like DuckTales the Movie: Treasure of the Lost Lamp (1990), Anastasia (1997), PBS Kids' Cyberchase (2002–present), which earned him two Daytime Emmy nominations, and Cartoon Network's Over the Garden Wall (2014).