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 Olivia Wilde Thirteen, Dr. Remy Hadley Actor Michael Weston Lucas Douglas Guest Star Cynthia Watros Sam Carr Guest Star Sarah Jones Shannon Guest Star Noah Segan William Guest Star Wes Ramsey Miles Guest Star Carey Embry Sarah Guest Star Ryan Radis Apothecary Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer Juan José Campanella Director John C. Kelley Writer