Michael Cassidy

Michael Cassidy (born March 20, 1983) is an American film and television actor. He is best known for his role as Zach Stevens on The O.C. and as Tyler Mitchell on the TBS comedy Men at Work. He portrayed Jonathan Walsh on comedy People of Earth from the show's start in 2016 until its 2018 cancellation.

Michael Cassidy is known for work in acting across film and television. New Release currently presents 28 verified screen credits connected to this profile.

Selected work includes Ballard (2025), Hidden Palms (2007), Zoom (2006), The O.C. (2003), Law & Order: Special Victims Unit (1999), The Magicians (2015), The Rookie (2018), Smallville (2001). The recorded credits span 1985 to 2026, including 5 movies and 23 TV shows.

The filmography below lists available titles, release years and known roles. This profile is updated as additional verified information becomes available.