On the series Hickey will play Mark Easton, a U.S. Attorney of the Chicago district who is a presidentially appointed federal prosecutor. Also in the cast are Jordana Spiro and Zach Gilford.

Here's how Fox describes the new series: "Dr. Grace Devlin (Spiro) is a top resident at Chicago's Roosevelt Medical Center. Smart and self-assured, she's heralded as one of the country's most promising young surgeons. But family ties keep her glued to her Southside roots. To pay off her brother's life-threatening gambling debt, she makes a deal with the devil and agrees to work 'off book' for the mafia men she once despised."

Hickey, who took home a 2011 Tony Award for his performance in Larry Kramer's The Normal Heart, has also been seen on Broadway in Mary Stuart, The Crucible, Cabaret and Love! Valour! Compassion!