Mann was born in Middlebury, Vermont, to Alice Jo (née Amis), an attorney, and Stephen Smith Mick, a sociology professor.[3][4] Mann began his career as a professional runway model.[5]
In May 2012, Mann joined the ensemble cast of Diego Luna's biopic film Cesar Chavez, alongside Michael Peña, America Ferrera, Rosario Dawson, John Malkovich, and Wes Bentley.[10] Mann starred as billionaire computer hacker Nolan Ross on the ABC drama series Revenge, which ran from 2011 to 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.[11]
In 2019, Mann starred as Gage Scott in the Netflix thriller anthology miniseries What/If.[12]
^"Gabriel Mann (visual voices guide)". Behind The Voice Actors. Retrieved August 13, 2024. A green check mark indicates that a role has been confirmed using a screenshot (or collage of screenshots) of a title's list of voice actors and their respective characters found in its credits or other reliable sources of information.