Theodore Raymond "T. R." Knight (born March 26, 1973) is an American actor. Knight's most high-profile role to date was his role as Dr. George O'Malley on ABC's medical drama Grey's Anatomy.
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as Victor Creel
as Bob
as Sandy Baker
as Jacob Jr.
as Davey Bowden(12 eps)
as Reince Priebus(1 ep)
as TR / Medvedenko
as Sir Cedric (voice)(26 eps)
as Drew Ference (voice)
as Gideon(1 ep)
as Carl
as Dexter Murphy(1 ep)
as J. Edgar Hoover(3 eps)
as Max Jacob(6 eps)
as Tommy(1 ep)
as Mark
as Johnny Clayton(4 eps)
as Kenny
as Harold Parrott
as Jordan Karahalios(7 eps)
as Narrator
as Jeff
as George O'Malley(101 eps)
as Self(1 ep)
as Self(2 eps)
as Ryan Lemming(7 eps)
as Daniel
as Neil Colby(1 ep)
as Zero Adams(1 ep)
as Gabriel Thomas / Brian Smith(1 ep)
as Alex(1 ep)
as Self - Guest(1 ep)