Michael Cassidy
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.
Movies 18
Batman v Superman: Dawn of Justice
as Jimmy Olsen
2016
Gail Daughtry and the Celebrity Sex Pass
as Tom Soursap McNoodleman
2026
Argo
as Jordan's Analyst
2012
Army of the Dead
as Sgt. Kelly
2021
Zoom
as Dylan West / Houdini
2006
The Guilt Trip
as Fake Andy (uncredited)
2012
Dog Days
as Dr. Mike Stone
2018
Night of the Living Deb
as Ryan Waverly
2015
Hypochondriac
as NP Chaz
2022
The Girl from Monday
as Ted
2005
Jingle Around the Clock
as Max
2018
Boys On Film 3: American Boy
as Johnny (segment "Dare")
2009
Delivered
as Tom
2020
The Dare Project
as Johnny
2018
Dare
as Johnny
2005
The Stray
as Mitch Davis
2017
Breaking Fast
as Kal
2020
Boys Life 5
2006TV Shows 26
Law & Order: Special Victims Unit
as Derek Simpson
1999
The Rookie
as Caleb Wright
2018
Smallville
as Grant Gabriel
2001
Castle
as Greg McClintock
2009
MacGyver
as Robert Julian
1985
Scandal
as Travis Harding
2012
The Magicians
as James
2015
The O.C.
as Zach Stevens
2003
Station 19
as Peter
2018
Resident Alien
as Dr. Ethan Stone
2021
Good Trouble
as Asher Bowen
2019
Happy Endings
as Male Lead
2011
Masters of Sex
as Dr. Malcolm Toll
2013
Mythic Quest
as Peter Cromwell
2020
Found
as Christian Evans
2023
Ballard
as Aaron
2025
Stalker
as Brian Mitchell
2014
Men at Work
as Tyler
2012
Fatal Attraction
as Clay Bishop
2023
The Guest Book
2017
Privileged
as Charlie Hogan
2008
Waco: The Aftermath
as Bill Johnston
2023
Hidden Palms
as Cliff Wiatt
2007
Are You There, Chelsea?
as Jonathan
2012
People of Earth
as Jonathan Walsh
2016
Inside Room 334
as Seth
2010