Episode Holding On Adaptation: House MD Episode: 8x21 Airdate: 14 May 2012 IMDb: Holding On (link not verified) Previous: Post Mortem Next: Everybody Dies Cast Hugh Laurie as Dr. Gregory House Robert Sean Leonard as Dr. James Wilson Odette Annable as Dr. Jessica Adams Lindsay Dennis as Cheerleader Brayden Brooks as 6 Year Old Christopher Natalie Dreyfuss as Courtney Skylar Astin as Derrick Derek Mio as Floyd Omar Epps as Dr. Eric Foreman Olivia Wilde as Dr. Remy 'Thirteen' Hadley David Danino as Janitor David Fraioli as Janitor Moira Squier as Jen Enzo Cilenti as Matt Johnson Michael Christian Alexander as Man Jacob Zachar as Mikey Bobbin Bergstrom as Nurse Charlyne Yi as Dr. Chi Park India King as Cancer Patient Sonya Macari as Penelope Joshua Rush as Ryan Peter Jacobson as Dr. Chris Taub Lyn Alicia Henderson as Vet Pat McNeely as Woman