Trent Olsen is an actor, musician, comic book writer and showbiz personality from California, USA. He is the older brother of Mary-Kate and Ashley Olsen, better known as the Olsen twins, famous for their appearances in a number of television movies, films and direct-to-video releases including ‘Full House’, ‘The Adventures of Mary-Kate & Ashley’, ‘It Takes Two and Two of a Kind’. He also has another famous younger sister, Elizabeth Olsen, who has made a name for herself by appearing in films like ‘Silent House’, ‘Godzilla’, ‘Avengers: Age of Ultron’ and ‘Captain America: Civil War’. He himself has appeared in many of his sisters' films, including ‘Our First Video’ and ‘Olsen Twins Mother's Day Special’ (both in 1993), ‘You're Invited to Mary-Kate & Ashley's Sleepover Party’ and ‘The Adventures of Mary-Kate & Ashley: The Case of the Mystery Cruise’ (in 1995), and ‘The Adventures of Mary-Kate & Ashley: The Case of the U.S. Space Camp Mission’, in 1996. He worked as an uncredited extra in a scene featuring Snoop Dogg in the movie ‘Old School’ (2003). In 2014, he appeared as Nick in the episode "Work Break" of the television series ‘Comedy Corner’. He has been a writer for Sandy King Carpenter's Storm King Productions.