Emerging from a Vermont upbringing, Mann honed his craft at The Neighborhood Playhouse School of the Theatre in New York City before transitioning from runway modeling to screen acting. He entered film with roles in Parallel Sons and Stonewall (1995) under the name Gabriel Mick, later appearing in The Life of David Gale, The Bourne Identity and its sequel The Bourne Supremacy, and portraying Fathe…
