George Clooney: Back on ER!
In television's worst kept secret, George Clooney returned to ER last night.
The actor returned to the role that made him famous: womanizing, stubborn Dr. Doug Ross.
Clooney slipped right back into the character, as he starred mostly in scenes opposite a grief-stricken Susan Sarandon. Watch the powerhouse stars in a clip from the show below: