Bradley Cooper (Season 6, Episode 20: “Night”)

In one of his earliest roles, Bradley Cooper appeared on "SVU" in a Season 6 episode back in 2005. He played Jason Whitaker, a lawyer defending a wealthy family against rape accusations, only to end in the revelation that his client was guilty and he was being paid to withhold information.

He has since gone on to star in many comedies such as Wedding Crashers, Failure to Launch, and The Hangover movies. He has a number of critically-acclaimed dramas under his belt as well, such as A Place Beyond the Pines, Silver Linings Playbook, American Crime, and American Gangster, and he's been nominated for 7 Oscars! He also was inducted into the Marvel hall of fame as Rocket in Guardians of the Galaxy. Most recently, he wowed the world as Jackson Maine in A Star is Born, which he also wrote and directed.