Passage: Cooper's career prospects improved with a more prominent role in the David Dobkin-directed comedy Wedding Crashers (2005) alongside Owen Wilson, Vince Vaughn and Rachel McAdams. In the film, he played Sack Lodge, the arrogant and aggressive boyfriend of Claire (McAdams) who is obsessed with winning—a role he describes as "kind of a sociopath". Cooper believed that the antagonistic character changed people's perception of him, as he had previously played the "nice guy". With a production budget of $40 million, the film grossed over $285 million worldwide. In September 2005, Fox debuted the sitcom Kitchen Confidential, based on a memoir by chef Anthony Bourdain, with Cooper in the leading role. Despite positive reviews for the series, the show was canceled after only four episodes due to low ratings.In March 2006, Cooper starred as Pip/Theo in Three Days of Rain on Broadway with Julia Roberts and Paul Rudd. This was followed by minor roles in the romantic comedy Failure to Launch (2006) and the satirical comedy The Comebacks (2007). Cooper next appeared in the fifth season of Nip/Tuck (2007) as Aidan Stone, a television star on the fictional show Hearts 'N Scalpels. In 2008, he played the lead in Older than America, and appeared onstage in a production of Theresa Rebeck's play The Understudy at the Williamstown Theatre Festival alongside Kristen Johnston. Between his small roles of best friend to the main character in the 2008 comedies Yes Man and The Rocker, Cooper landed the lead role in the Ryuhei Kitamura-directed horror film The Midnight Meat Train (2008), based on Clive Barker's 1984 short story of the same name. Playing the dark character of a freelance photographer who tries to track down a serial killer was a departure from Cooper's previous comedic roles and an experience he found enjoyable. The film received positive reviews from critics, though it earned little at the box office.

Question: Who did Cooper appear as in the show Nip/Tuck?
Aidan Stone