See some of Hollywood's biggest stars before they became household names. How many do you recognize?

Before They Were Famous: Actors' Early Roles

See some of Hollywood&#39;s biggest stars before they became household names. How many do you recognize?

These actors bear a striking resemblance to each other. Take a closer look at some of Hollywood's doppelgangers.

Seeing Double: Celebrity Doppelgangers

These actors bear a striking resemblance to each other. Take a closer look at some of Hollywood&#39;s doppelgangers.

Michael Cassidy 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.

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Michael Cassidy

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