John Slattery was born in Boston in 1962. He graduated from The Catholic University of America with a degree in Fine Arts in 1984. He began acting for TV in 1988 in the series Dirty Dozen: The Series and continuted to make small film and television appearances for the next two decades including 38 episodes of Homefront, 17 episodes of Ed, and 21 episodes of Jack & Bobby until he was cast as Roger Sterling in AMC's Mad Men.
He has also appeared in the films Iron Man 2, The Adjustment Bureau, and Charlie Wilson's War.
- Season Four