William West McNamara (born March 31, 1965) is an American actor. Description above from the Wikipedia article William McNamara, licensed under CC-BY-SA, full list of contributors on Wikipedia.

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William McNamara is an American film and television actor who trained at the Lee Strasberg Theatre and Film Institute and has appeared in numerous features since the 1980s.
He is recognized for his notable supporting and lead roles in films such as Copycat, Dario Argento's Opera, and Surviving the Game.
He primarily works in genre cinema, spanning psychological thrillers, horror, action, and independent dramas.