Gabriel Mann

Mann was born in Middlebury, Vermont, to Alice Jo (née Amis), an attorney, and Stephen Smith Mick, a sociology professor. Mann began his career as a professional runway model.

He started acting in 1995 in the films Parallel Sons and Stonewall, in which he was credited as Gabriel Mick. He appeared as Father Francis in Dominion: Prequel to the Exorcist, directed by Paul Schrader; when the studio hired Renny Harlin to re-shoot it, Mann's character was recast due to a scheduling conflict. Mann played one of the lead roles in the psychological thriller Psych 9 with Sara Foster, Cary Elwes and Michael Biehn.

Mann appeared in episodes of the television series ER, Fantasy Island, Jeremiah, Carnivàle, Wasteland, Time of Your Life, and Legend of the Seeker. In 2008 he appeared in four episodes of the AMC drama series Mad Men as Arthur Case. He also voiced Bruce Banner in the animated series The Avengers: Earth's Mightiest Heroes and Wolverine and the X-Men, which are set in the same continuity.

In May 2012, Mann joined the ensemble cast of Diego Luna's historical biopic of Cesar Chavez titled Cesar Chavez, alongside Michael Peña, America Ferrera, Rosario Dawson, John Malkovich, and Wes Bentley. Mann starred as billionaire computer hacker Nolan Ross on the ABC drama series Revenge, which ran from September 21, 2011 – May 10, 2015. He is also signed with DNA Models and previously with Next Models. He has worked with Mario Testino for Gap and as the face of CP Company as well as Richard Avedon for Club Monaco. He has also worked with Mario Sorrenti for Perry Ellis, Ellen Von Unwerth, Steven Klein, Tyler Shields, Marc Jacobs, and Calvin Klein.

In 2019, Mann starred as Gage Scott in the Netflix thriller anthology miniseries, What/If.