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