Michael Cassidy
Known for acting · Born 20 March 1983 · 43 · Portland, Oregon, USA
45 credits
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.
Known for
The O.C.
2003
Smallville
2001
Men at Work
2012
People of Earth
2016
Night of the Living Deb
2015
Resident Alien
2021
Ballard
2025
Privileged
2008
Breaking Fast
2020
Good Trouble
2019
Jingle Around the Clock
2018
Dare
2005
Acting (44)
2026Gail Daughtry and the Celebrity Sex PassTom Soursap McNoodlemanFilm
2025BallardAaron · 8 episodesSeries
2023FoundChristian Evans · 5 episodesSeries
2023Fatal AttractionClay Bishop · 2 episodesSeries
2023Waco: The AftermathBill Johnston · 5 episodesSeries
2022HypochondriacNP ChazFilm
2021Army of the DeadSgt. KellyFilm
2021Resident AlienDr. Ethan Stone · 6 episodesSeries
2020Mythic QuestPeter CromwellSeries
2020Breaking FastKalFilm
2020DeliveredTomFilm
2019Good TroubleAsher Bowen · 7 episodesSeries
2018The RookieCaleb Wright · 2 episodesSeries
2018Station 19PeterSeries
2018Dog DaysDr. Mike StoneFilm
2018Jingle Around the ClockMaxFilm
2018The Dare ProjectJohnnyFilm
2017The StrayMitch DavisFilm
2017The Guest BookSeries
2016Batman v Superman: Dawn of JusticeJimmy OlsenFilm
2016People of EarthJonathan Walsh · 20 episodesSeries
2015The MagiciansJames · 4 episodesSeries
2015Night of the Living DebRyan WaverlyFilm
2014StalkerBrian MitchellSeries
2013Masters of SexDr. Malcolm TollSeries
2012ArgoJordan's AnalystFilm
2012The Guilt TripFake Andy (uncredited)Film
2012ScandalTravis HardingSeries
2012Men at WorkTyler · 30 episodesSeries
2012Are You There, Chelsea?JonathanSeries
2011Happy EndingsMale LeadSeries
2010Inside Room 334SethSeries
2009CastleGreg McClintockSeries
2009Boys On Film 3: American BoyJohnny (segment "Dare")Film
2008PrivilegedCharlie Hogan · 18 episodesSeries
2007Hidden PalmsCliff Wiatt · 8 episodesSeries
2006ZoomDylan West / HoudiniFilm
2006Boys Life 5Film
2005DareJohnnyFilm
2005The Girl from MondayTedFilm
2003The O.C.Zach Stevens · 19 episodesSeries
2001SmallvilleGrant Gabriel · 7 episodesSeries
1999Law & Order: Special Victims UnitDerek SimpsonSeries
1985MacGyverRobert JulianSeries
Production (1)
2015Night of the Living DebProducerFilm