Acting

Michael Cassidy

Born 1983-03-20 · Portland, Oregon, USA21 series23 films

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's films on Charmy Movies →

Acting

2025BallardAaron8 ep.
2023FoundChristian Evans5 ep.
2023Fatal AttractionClay Bishop2 ep.
2023Waco: The AftermathBill Johnston5 ep.
2021Resident AlienDr. Ethan Stone6 ep.
2020Mythic QuestPeter Cromwell1 ep.
2019Good TroubleAsher Bowen7 ep.
2018The RookieCaleb Wright2 ep.
2017The Guest Book1 ep.
2016People of EarthJonathan Walsh20 ep.
2015The MagiciansJames4 ep.
2014StalkerBrian Mitchell1 ep.
2012Men at WorkTyler30 ep.
2012Are You There, Chelsea?Jonathan1 ep.
2011Happy EndingsMale Lead1 ep.
2010Inside Room 334Seth1 ep.
2009CastleGreg McClintock1 ep.
2008PrivilegedCharlie Hogan18 ep.
2007Hidden PalmsCliff Wiatt8 ep.
2003The O.C.Zach Stevens19 ep.
2001SmallvilleGrant Gabriel7 ep.

Guest appearances

2025Law & Order: Special Victims UnitDerek Simpson1 ep.
2021Resident AlienDr. Ethan Stone6 ep.
2025BallardAaron8 ep.
2024FoundChristian Evans5 ep.
2023Fatal AttractionClay Bishop2 ep.
2022Good TroubleAsher Bowen7 ep.
2021Mythic QuestPeter Cromwell1 ep.
2019The RookieCaleb Wright2 ep.
2018The Guest Book1 ep.
2018Station 19Peter1 ep.
2015The MagiciansJames4 ep.
2015StalkerBrian Mitchell1 ep.
2013Masters of SexDr. Malcolm Toll1 ep.
2012ScandalTravis Harding1 ep.
2012Are You There, Chelsea?Jonathan1 ep.
2012Happy EndingsMale Lead1 ep.
2011Inside Room 334Seth1 ep.
2010CastleGreg McClintock1 ep.
2007SmallvilleGrant Gabriel7 ep.
2004The O.C.Zach Stevens19 ep.
1987MacGyverRobert Julian1 ep.