Hugh Laurie » Dr. Gregory House
Omar Epps » Dr. Eric Foreman
Robert Sean Leonard » Dr. James Wilson
Jesse Spencer » Dr. Robert Chase
Lisa Edelstein » Dr. Lisa Cuddy
Jennifer Morrison » Dr. Allison Cameron
Peter Jacobson » Dr. Chris Taub
Olivia Wilde » Dr. Remy ‘Thirteen’ Hadley
Kal Penn » Dr. Lawrence Kutner