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 Sela Ward Stacy Warner Guest Star Allison Smith Kayla McGinley Guest Star Ryan Hurst Sam McGinley Guest Star John Rubinstein Dr. Ayersman Guest Star John Lafayette Dr. Schisgal Guest Star Kevin Moon E.M.T. Guest Star Licia L. Shearer Clinic Patient Guest Star Stephanie Venditto Nurse Brenda Previn Guest Star Samantha Hanratty Dory Guest Star Adair Tishler Nikki Guest Star Kate Enggren Mrs. Ayersman Guest Star Greg Winter Chuck Guest Star Sterling Beaumon Boy Magician Guest Star Paul Attanasio Executive Producer Katie Jacobs Executive Producer David Shore Executive Producer Bryan Singer Executive Producer David Semel Director Peter Blake Writer