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.
Movie Appearances
Zoom
as Dylan West / Houdini
2006
Hypochondriac
as NP Chaz
2025
Dare
as Johnny
2005
Batman v Superman: Dawn of Justice
as Jimmy Olsen
2016
Night of the Living Deb
as Ryan Waverly
2015
Boys On Film 3: American Boy
as Johnny (segment "Dare")
2009
The Stray
as Mitch Davis
2017
The Dare Project
as Johnny
2018
Dog Days
as Dr. Mike Stone
2018
Jingle Around the Clock
as Max
2018
Army of the Dead
as Sgt. Kelly
2021
Delivered
as Tom
2020
Breaking Fast
as Kal
2020
Argo
as Jordan's Analyst
2012
The Girl from Monday
as Ted
2005
The Guilt Trip
as Fake Andy (uncredited)
2012
Boys Life 5
2006
Gail Daughtry and the Celebrity Sex Pass
as Tom
2026
TV Appearances
Castle
as Greg McClintock
2009
Station 19
as Peter
2018
The O.C.
as Zach Stevens
2003
Resident Alien
as Dr. Ethan Stone
2021
Smallville
as Grant Gabriel
2001
Privileged
as Charlie Hogan
2008
Hidden Palms
as Cliff Wiatt
2007
Mythic Quest
as Peter Cromwell
2020
Men at Work
as Tyler
2012
The Rookie
as Caleb Wright
2018
Waco: The Aftermath
as Bill Johnston
2023
People of Earth
as Jonathan Walsh
2016