John M. Slattery Jr. is an American actor and director. He is known for his role as Roger Sterling in the AMC drama series Mad Men (2007–15), for which he was nominated four times for the Primetime Emmy Award for Outstanding Supporting Actor in a Drama Series. For his role he won two Critics' Choice Television Awards and two Screen Actors Guild Awards.

Roger H. Sterling Jr. is a fictional character on the AMC period drama television series Mad Men and the comedy film Unfrosted. He formerly worked for Sterling Cooper, an advertising agency his father co-founded in 1923, before he became a founding partner at the new firm of Sterling Cooper Draper Pryce in late 1963. Sterling was portrayed by John Slattery.