Marcus Giamatti

Marcus Giamatti is an American actor. On House, M.D., he portrayed comic book author Jeffrey Keener in the Season 6 episode Known Unknowns.
Giamatti has had featured roles in Another World, Flying Blind, Hamlet, The Business of Strangers, Judging Amy, Tell Me You Love Me, Look, and The Young and the Restless.
Category:Actors
Category:Season 6