Hugh Laurie Dr. Gregory House Actor Lisa Edelstein Dr. Lisa Cuddy Actor Omar Epps Dr. Eric Foreman Actor Robert Sean Leonard Dr. James Wilson Actor Jennifer Morrison Dr. Allison Cameron Actor Jesse Spencer Dr. Robert Chase Actor Nick Lane Nate Guest Star Colleen Flynn Enid Guest Star Dustin Joiner Mark Guest Star David Bowe Doug Guest Star Ben Bledsoe Opponent Guest Star Jack Maxwell Male Proctor Guest Star Kyra Da Costa Female Proctor Guest Star Cindy Lu Nurse Guest Star Katie Boggs Screaming Girl Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer Daniel Sackheim Director Leonard Dick Writer