House's wheels start turning when a pro-cyclist admits to taking performance-enhancing drugs.
Hugh Laurie
Gregory House
Lisa Edelstein
Lisa Cuddy
Robert Sean Leonard
James Wilson
Omar Epps
Eric Foreman
Jennifer Morrison
Allison Cameron
Jesse Spencer
Robert Chase
Currie Graham
Mark Warner
Nathan Kress
Scott
Kristoffer Polaha
Jeff Forrester
Taraji P. Henson
Moira
Tom Lenk
Allen
Alanna Ubach
Dr. Louise Harper
Austin Whitlock
Matthew
Scott Kradolfer
Matthew's Father
Julie Quinn
Matthew's Mother
Drew Gardner
Blind Guy
Patrick Roman Miller
Maintenance Man
Sela Ward
Stacy Warner
