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 Thomas Dekker Boyd Guest Star William Katt Walter Guest Star Tamara Braun Grace Guest Star Sandra Marshall Agnes Guest Star Marco Antonio Martinez Dry Cleaner Guest Star Michael Edwin Tax Accountant Guest Star David Cheaney Bus Stop Guest Star Will Rogers Pastor Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer John Showalter Director Doris Egan Writer