Sidney Eddie Mosesian, known professionally as Sid Haig, was an American actor. He was known for his appearances in horror films, most notably his role as Captain Spaulding in the Rob Zombie films House of 1000 Corpses, The Devil's Rejects and 3 from Hell. Haig's Captain Spaulding, and Haig himself, have been called icons of horror cinema. Haig had a leading role on the television series Jason of Star Command as the villain Dragos. He appeared in many television programs, including The Untouchables, Batman, Gunsmoke, Mission: Impossible, Mary Hartman, Mary Hartman, Star Trek, Get Smart, The Rockford Files, Charlie's Angels, Fantasy Island, Buck Rogers in the 25th Century, The Dukes of Hazzard, The A-Team, MacGyver, and Emergency!. Haig also had roles in several of Jack Hill's blaxploitation films from the 1970s.

Captain Spaulding is a fictional character created by Rob Zombie. The character first appeared in Zombie's 2003 horror film House of 1000 Corpses, portrayed by Sid Haig. Haig reprised his role as Spaulding in the sequels The Devil's Rejects (2005) and 3 from Hell (2019). Haig also voiced Spaulding in the 2009 animated film The Haunted World of El Superbeasto. The character is depicted as a vulgar and murderous clown.