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 Peter Jacobson Dr. Chris Taub Actor Kal Penn Dr. Lawrence Kutner Actor Olivia Wilde Thirteen, Dr. Remy Hadley Actor Dominic Scott Kay Jackson Smith Guest Star Julia Campbell Melanie Guest Star Ben Reed Joseph Guest Star Nick Puga Ian Guest Star Fred Kronenberg Doctor Guest Star Meagan Gordon Young Woman Guest Star Nicole Cannon Nurse Helen Guest Star Bobbin Bergstrom Nurse Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer Deran Sarafian Director Liz Friedman Writer