Christian Bale has no shortage of iconic roles to his name. From narcissistic serial killer Patrick Bateman, to his brooding and gravel-voiced take on Batman, to his new outing as former vice-president Dick Cheney, Bale is an actor who truly disappears into his characters. One of the things that makes Bale such a chameleon in Hollywood is his ability to shed and gain weight, seemingly at will. Here are 12 roles spanning his career that required Bale to either lose or gain weight.