Peter DeLuise is an American actor and director. He is the son of actor and comedian Dom DeLuise and actress Carol Arthur, and the brother of actors David DeLuise and Michael DeLuise.
DeLuise first starred in the 1979 film Hot Stuff, but it was not until 1987 that he became well known as Officer Doug Penhall in the television series 21 Jump Street, from 1987-1990.
Peter's brother Michael joined the show in the fifth season, playing his younger brother Officer Joey Penhall.
Peter is also well known for his role as Dagwood on the science fiction television series SeaQuest DSV, from 1994-1996.
From 1997 onwards he served as producer and often also writer and director for the series Stargate SG-1. He has appeared, normally as an extra, in every episode of the series he has directed.
He now works as executive producer, director and writer for the Stargate SG-1 spin-off Stargate Atlantis.
DeLuise has made guest appearances on television shows ranging from The Facts of Life, 21 Jump Street spin-off Booker, Highlander: The Series, Friends, Andromeda and Stargate SG-1.
Peter was married to actress Gina Nemo from 1988 to 1992; she played Doug Penhall's girlfriend on 21 Jump Street. He is now married to Canadian actress Anne Marie Loder, and they have a son together.