Yes, Jimmy went there.
Actor Kiefer Sutherland appeared on Late Night with Jimmy Fallon Thursday to promote the DVD release of the seventh season of 24, and Jimmy brought up Kiefer's now infamous headbutting attack on a fashion designer.
Kiefer Sutherland Charged for Fashion Headbutt
Fallon asked: "Do you think you're Jack Bauer?", refering to his high-octane character's name on the hit Fox drama.
Hear Kiefer's response in the video.