- as Dr. Gregory House
- as Simon
- as Dr. Lisa Cuddy
- as Natalie
- as Dr. Eric Foreman
- as Whitney
- as Dr. James Wilson
- as Geoff
- as Dr. Allison Cameron
- as Anna
- as Dr. Robert Chase
- as Janice Burke
- as Dr. Chris Taub
- as Dr. Lawrence Kutner
- as Dr. Remy Hadley
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Watch "House M.D. > Joy to the World":