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Treat Williams : Mick O’Brien

Treat Williams began his professional career as an understudy in “Grease” on Broadway. After his 1976 film debut in Deadly Hero, he returned to Broadway and “Grease,” this time in the starring role. Spotted on stage by film director Milos Forman, he was cast in Forman’s Hair, for which he earned a Golden Globe® Award nomination. Over the course of his career, he has appeared in over 75 films, along with a number of critically acclaimed roles on television. Some highlights from Williams’s expansive career include roles in Steven Spielberg’s 1941, a Golden Globe Award®-nominated performance in Sidney Lumet’s Prince of the City, Sergio Leone’s Once Upon a Time in America and Danny Boyle’s 127 Hours.

Williams’s many television projects include a Golden Globe® Award-nominated performance in “A Streetcar Named Desire,” an Emmy® Award-nominated performance in HBO’s “The Late Shift,” Hallmark Hall of Fame’s “Front of the Class" and the Hallmark Movies & Mysteries Original “Beyond the Blackboard” as well as Lifetime’s “The Staircase Murders.” He has also appeared in such series as The CW’s “Heartland,” ABC’s “Brothers & Sisters” and had a lead role in The WB’s “Everwood,” for which he earned two SAG Award nominations.

Recently, Williams appeared in lead roles on both NBC’s “Chicago Fire” and “American Odyssey.”