Acting
Michael Cassidy
Born March 20, 1983 · Portland, Oregon, USA
Biography
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
6.4
Batman v Superman: Dawn of Justice
Jimmy Olsen
7.7
Argo
Jordan's Analyst
7.5
Smallville
Grant Gabriel
5.8
Army of the Dead
Sgt. Kelly
8.1
Law & Order: Special Victims Unit
Derek Simpson
8.0
The Rookie
Caleb Wright
8.1
Castle
Greg McClintock
7.6
The Magicians
James
7.1
Station 19
Peter
8.0
Resident Alien
Dr. Ethan Stone
7.6
The O.C.
Zach Stevens
7.6
MacGyver
Robert Julian
5.8
The Guilt Trip
Fake Andy (uncredited)
4.4
Zoom
Dylan West / Houdini
7.7
Scandal
Travis Harding
7.6
Mythic Quest
Peter Cromwell
7.9
Masters of Sex
Dr. Malcolm Toll
6.2
Dog Days
Dr. Mike Stone
7.8
Happy Endings
Male Lead
7.5
Ballard
Aaron
Filmography
- 2026Gail Daughtry and the Celebrity Sex PassTom Soursap McNoodlemanMovie
- 2025BallardAaronSeries
- 2023FoundChristian EvansSeries
- 2023Fatal AttractionClay BishopSeries
- 2023Waco: The AftermathBill JohnstonSeries
- 2022HypochondriacNP ChazMovie
- 2021Army of the DeadSgt. KellyMovie
- 2021Resident AlienDr. Ethan StoneSeries
- 2020DeliveredTomMovie
- 2020Breaking FastKalMovie
- 2020Mythic QuestPeter CromwellSeries
- 2019Good TroubleAsher BowenSeries
- 2018Jingle Around the ClockMaxMovie
- 2018The RookieCaleb WrightSeries
- 2018Dog DaysDr. Mike StoneMovie
- 2018The Dare ProjectJohnnyMovie
- 2018Station 19PeterSeries
- 2017The StrayMitch DavisMovie
- 2017The Guest BookSeries
- 2016People of EarthJonathan WalshSeries
- 2016Batman v Superman: Dawn of JusticeJimmy OlsenMovie
- 2015The MagiciansJamesSeries
- 2015Night of the Living DebRyan Waverly, ProducerMovie
- 2014StalkerBrian MitchellSeries
- 2013Masters of SexDr. Malcolm TollSeries
- 2012The Guilt TripFake Andy (uncredited)Movie
- 2012ArgoJordan's AnalystMovie
- 2012Men at WorkTylerSeries
- 2012ScandalTravis HardingSeries
- 2012Are You There, Chelsea?JonathanSeries
- 2011Happy EndingsMale LeadSeries
- 2010Inside Room 334SethSeries
- 2009Boys On Film 3: American BoyJohnny (segment "Dare")Movie
- 2009CastleGreg McClintockSeries
- 2008PrivilegedCharlie HoganSeries
- 2007Hidden PalmsCliff WiattSeries
- 2006ZoomDylan West / HoudiniMovie
- 2006Boys Life 5Movie
- 2005DareJohnnyMovie
- 2005The Girl from MondayTedMovie
- 2003The O.C.Zach StevensSeries
- 2001SmallvilleGrant GabrielSeries
- 1999Law & Order: Special Victims UnitDerek SimpsonSeries
- 1985MacGyverRobert JulianSeries