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.
Early life Cassidy was born in Portland, Oregon. He graduated from La Salle High School in Milwaukie, Oregon, in 2001, and graduated from the Two-Year Conservatory program at The New Actors Workshop in New York City in 2003.
Career Cassidy is perhaps best known for his role as Zach Stevens throughout the second season of the television series The O.C.; his character had an on-again/off-again relationship with Summer Roberts. Cassidy also had a role in the 2006 film Zoom.
In 2007, Cassidy played Cliff Wiatt in The CW television program, Hidden Palms.
Cassidy joined the cast of Smallville, a television show based on the DC Comics' superhero Superman, in the series' seventh season, starring as the new editor of the Daily Planet, Grant Gabriel, a love interest of Lois Lane. In truth, he was Julian Luthor, the cloned and aged brother of Lex. In the episode "Persona," Cassidy's character was shot dead, marking the end of his character's saga. Cassidy later returned to the Superman franchise portraying Jimmy Olsen in the 2016 film Batman v Superman: Dawn of Justice. In the early 2000s, Cassidy auditioned for the role of Superman in the JJ Abrams-penned film Superman Flyby, which ultimately went unmade.
He played Charlie Hogan, the best friend of Megan Smith (JoAnna Garcia) in the first fourteen episodes of the television show Privileged.
Cassidy then portrayed Tyler Mitchell on the TBS show Men at Work for three seasons.
Cassidy also had small roles in the film Argo, and in The Guilt Trip, both in 2012.
On February 27, 2015, Cassidy joined the NBC workplace comedy pilot, Not Safe for Work, however, the pilot was passed on.
Cassidy joined the TBS pilot People of Earth opposite Wyatt Cenac. It was picked up for series on January 7, 2016. Cassidy played the charismatic and successful Jonathan Walsh, CEO of Walsh Media.
Personal life In August 2006, Cassidy married girlfriend Laura Eichhorn, whom he met in high school. They have three children.
Filmography Film Year Title RoleNotes2005 The Girl from Monday Ted Dare Johnny 2006 Zoom Dylan West / Houdini 2012 Argo Jordan's Analyst The Guilt Trip Fake Andy Uncredited 2015 Night of the Living Deb Ryan Waverly Also producer 2016 Batman v Superman: Dawn of Justice Jimmy Olsen Cameo 2017 The Stray Mitch Davis 2018 Dog Days Dr. Mike The Dare Project Johnny Jingle Around the Clock Max Turner 2020 Breaking Fast Kal 2021 Army of the Dead Sergeant Cassidy 2022 Hypochondriac NP Chaz 2026 Gail Daughtry and the Celebrity Sex Pass Tom Soursap McNoodleman
Television Year Title Role Notes 2004–2005 The O.C. Zach Stevens Recurring role (season 2); 19 episodes 2007 Hidden Palms Cliff Wiatt Main role 2007–2008 Smallville Grant Gabriel Recurring role 2008–2009 Privileged Charlie Hogan Main role2010 Castle Greg McClintock Episode: "Anatomy of a Murder" The Pink House Unsold pilot2012 Happy Endings Male Lead Episode: "The Shrink, the Dare, Her Date and Her Brother" Are You There, Chelsea? Jonathan Episode: "Pilot" Scandal Travis Harding Episode: "Hell Hath No Fury" 2012–2014 Men at Work Tyler Mitchell Main role 2013 Masters of Sex Dr. Malcolm Toll Episode: "Phallic Victories"2015 Not Safe for Work Dale Unsold pilot Stalker Brian Mitchell Episode: "Love Kills" 2015–2016 The Magicians James 4 episodes 2016 The Night Shift Sam 2016–2017 People of Earth Jonathan Walsh Main role2018 Station 19 Peter Episode: "Every Second Counts" The Guest Book Tim Episode: "Killer Party" 2019–2020 The Rookie Caleb Wright 2 episodes 2020 Into The Dark Tom Episode: "Delivered" 2021 Mythic Quest Peter Cromwell Episode: "Backstory!" 2021–2025 Resident Alien Dr. Ethan StoneRecurring role 2022 Good Trouble Asher 2023 Waco: The Aftermath Bill Johnston Fatal Attraction Clay Bishop 2 episodes 2024 Found Christian Evans Recurring role2025BallardAaronRecurring roleLaw & Order: Special Victims UnitDerek SimpsonEpisode: " A Waiver of Consent"
Web Year Title Role Notes 2009 Rockville CA Dax 2 episodes 2010 Blue Belle Daniel Episode: "A Dude in Vegas" 2012 CollegeHumor Originals Robert Episode: "Breaking Dawn Cheating Outtakes" 2014 Millennial Parents Leo Episode: "Tamed in the Man Cave"
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