Peter John DeLuise is an American actor, director, producer, and screenwriter, known for his role as Officer Doug Penhall in the Fox TV series 21 Jump Street, and for directing and writing episodes of science fiction television shows, particularly in the Stargate franchise. He is the son of actors Dom DeLuise and Carol Arthur.
DeLuise made his film debut in the 1979 film Hot Stuff. He landed his best known acting role, as Officer Doug Penhall, in the 1987 Fox series 21 Jump Street, alongside other promising actors including Johnny Depp. His brother Michael came on the show in the fifth season where he played his younger brother, Officer Joey Penhall. DeLuise is also well known for his role as Dagwood on the NBC science fiction television series SeaQuest DSV from 1994 to 1996.
DeLuise has made guest appearances on the television shows The Facts of Life, 21 Jump Street spin-off Booker, Friends, Supernatural, Highlander: The Series, Gene Roddenberry's Andromeda, and Stargate SG-1.