Hugh Laurie Dr. Gregory House Actor Robert Sean Leonard Dr. James Wilson Actor Omar Epps Dr. Eric Foreman Actor Jesse Spencer Dr. Robert Chase Actor Peter Jacobson Dr. Chris Taub Actor Odette Annable Dr. Jessica Adams Actor Charlyne Yi Dr. Chi Park Actor Jamie Elman Dr. Peter Treiber Guest Star Peter Weller Dr. Penza Guest Star, Director Carole Gutierrez Helen Guest Star Jeremy Scott Glenn Orderly Guest Star Jennifer Christopher Molly Guest Star Carol Herman Ina Guest Star Bobbin Bergstrom Nurse Guest Star Gus Lynch Grieving Husband Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer David Hoselton Writer Kath Lingenfelter Writer