Michael Cassidy
Acting
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
Acting43
movieGail Daughtry and the Celebrity Sex Pass
2026
Tom Soursap McNoodleman
tvBallard
2025
Aaron
tvFound
2023
Christian Evans
tvFatal Attraction
2023
Clay Bishop
tvWaco: The Aftermath
2023
Bill Johnston
movieHypochondriac
2022
NP Chaz
movieArmy of the Dead
2021
Sgt. Kelly
tvResident Alien
2021
Dr. Ethan Stone
tvMythic Quest
2020
Peter Cromwell
tvGood Trouble
2019
Asher Bowen
tvThe Rookie
2018
Caleb Wright
movieDog Days
2018
Dr. Mike Stone
tvStation 19
2018
Peter
movieThe Stray
2017
Mitch Davis
tvPeople of Earth
2016
Jonathan Walsh
movieBatman v Superman: Dawn of Justice
2016
Jimmy Olsen
tvThe Magicians
2015
James
movieNight of the Living Deb
2015
Ryan Waverly
tvStalker
2014
Brian Mitchell
tvMasters of Sex
2013
Dr. Malcolm Toll
movieThe Guilt Trip
2012
Fake Andy (uncredited)
movieArgo
2012
Jordan's Analyst
tvMen at Work
2012
Tyler
tvScandal
2012
Travis Harding
tvHappy Endings
2011
Male Lead
movieBoys On Film 3: American Boy
2009
Johnny (segment "Dare")
tvCastle
2009
Greg McClintock
tvPrivileged
2008
Charlie Hogan
tvHidden Palms
2007
Cliff Wiatt
movieZoom
2006
Dylan West / Houdini
movieDare
2005
Johnny
tvThe O.C.
2003
Zach Stevens
tvSmallville
2001
Grant Gabriel
tvLaw & Order: Special Victims Unit
1999
Derek Simpson
tvMacGyver
1985
Robert Julian
Production1
movieNight of the Living Deb
2015
Producer