John Slattery is an American actor. He has also since ventured into directing. His acting career started in the late 1980s. During his initial years, he made his television debut in the series Dirty Dozen: The Series. In the ’90s, he starred as Al Kahn in the show Homefront. He later appeared as Dr. Richard Meyers in the series Maggie. During this period, he had roles in the movies City Hall, Hallmark Hall of Fame, and Sleepers. In the 2000s, he became further known for his notable roles as Dennis Martino in Ed, Peter Benedict in Jack & Bobby, and Victor Lang in Desperate Housewives. He gained greater success as Roger Sterling in Mad Men, which he played from 2007 to 2015. In addition, he played Howard Stark in Iron Man 2 and Captain America: Civil War, as well as portrayed Dwight D. Eisenhower in Churchill.