Joseph is best known as Tommy Egan on Starz' original hit series "Power". His other credits include "Ozark," "Boardwalk Empire," "Shutter Island," "SAFE," and "Grey's Anatomy," just to name a few. Joseph studied acting at Columbia College Chicago, where he earned his BA in theater, and made his Broadway debut in 2006 after he was cast as one of the leads on "The Caine Mutiny Court-Martial". He has been nominated for a Joseph Jefferson award for theater in Chicago and received an Ovation award for theatre in Los Angeles. He is a company member with Shattered Globe Theatre.