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Thespian Michael O'Neill grew up in Montgomery, AL, and attended nearby Auburn University as an economics major, then took his first steps toward professional acting work with a move to New York and on-stage roles at Playwrights Horizons. During the '80s, '90s, and 2000s, O'Neill divided his time, more or less equally, between stage, screen, and television; in all of these venues, the actor specialized in portrayals of gently authoritative yet warm and genial everyman types, such as kind fathers, school psychologists, and small-town physicians. Features in which O'Neill appeared included Ghost Story (1981), The Sunchaser (1996), Traffic (2000), and Transformers (2007); memorable television roles include contributions to The West Wing (as the head of presidential detail), 24, and Boston Public.