In May 2012, Mann joined the ensemble cast of Diego Luna's historical biopic of Cesar Chavez titled Cesar Chavez, which also stars 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.
In May 2012, Mann joined the ensemble cast of Diego Luna's biographical drama about Cesar Chavez, which also stars Michael Peña, America Ferrera, Rosario Dawson, John Malkovich, and Wes Bentley. Mann portrayed billionaire computer hacker Nolan Ross on the ABC drama series Revenge, which aired from September 21, 2011 – May 10, 2015.