Adam Baldwin is an American actor. He is known for his roles as Animal Mother in Stanley Kubrick's Full Metal Jacket, Ricky Linderman in My Bodyguard, Knowle Rohrer in The X-Files, and Marcus Hamilton in Joss Whedon's Angel. He also established a cult following as Jayne Cobb in the series Firefly, and the movie Serenity. He is not related to the Baldwin brothers.

He currently stars as NSA agent John Casey on the NBC comedy-spy series Chuck.