Bradley Cooper is an American actor, and the fourth guest on The Tonight Show with Conan O'Brien.
Bradley Cooper started his on-screen career on the successful TV show Sex and the City in 1998. He soon followed on to portray the character of Will Tippin on J. J. Abrams' Alias between 2001-2006 as well as on Nip\Tuck's fifth season. On the big screen, Cooper appeared in Wedding Crashers, Failure to Launch, He's Just Not That into You and The Hangover. Cooper also starred in the Broadway show Three Days of Rain alongside Paul Rudd and Julia Roberts.