Michael Cassidy
Acting
44
Acting Credits
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
Filmography
Gail Daughtry and the Celebrity Sex Pass
2026
as Tom Soursap McNoodleman
Ballard
2025
as Aaron
Waco: The Aftermath
2023
as Bill Johnston
Found
2023
as Christian Evans
Fatal Attraction
2023
as Clay Bishop
Hypochondriac
2022
as NP Chaz
Army of the Dead
2021
as Sgt. Kelly
Resident Alien
2021
as Dr. Ethan Stone
Delivered
2020
as Tom
Breaking Fast
2020
as Kal
Mythic Quest
2020
as Peter Cromwell
Good Trouble
2019
as Asher Bowen
The Dare Project
2018
as Johnny
Dog Days
2018
as Dr. Mike Stone
Jingle Around the Clock
2018
as Max
Station 19
2018
as Peter
The Rookie
2018
as Caleb Wright
The Stray
2017
as Mitch Davis
The Guest Book
2017
Batman v Superman: Dawn of Justice
2016
as Jimmy Olsen
People of Earth
2016
as Jonathan Walsh
Night of the Living Deb
2015
as Ryan Waverly
The Magicians
2015
as James
Stalker
2014
as Brian Mitchell
Masters of Sex
2013
as Dr. Malcolm Toll
Argo
2012
as Jordan's Analyst
The Guilt Trip
2012
as Fake Andy (uncredited)
Men at Work
2012
as Tyler
Scandal
2012
as Travis Harding
Are You There, Chelsea?
2012
as Jonathan
Happy Endings
2011
as Male Lead
Inside Room 334
2010
as Seth
Boys On Film 3: American Boy
2009
as Johnny (segment "Dare")
Castle
2009
as Greg McClintock
Privileged
2008
as Charlie Hogan
Hidden Palms
2007
as Cliff Wiatt
Zoom
2006
as Dylan West / Houdini
Boys Life 5
2006
Dare
2005
as Johnny
The Girl from Monday
2005
as Ted
The O.C.
2003
as Zach Stevens
Smallville
2001
as Grant Gabriel
Law & Order: Special Victims Unit
1999
as Derek Simpson
MacGyver
1985
as Robert Julian