Many movie fans may only know Anson Mount from his time working on the railroad as Cullen Bohannon of AMC's Hell On Wheels. Those who've watched the western don't need to be told how much nuance (and beard) Mount has brought to the role, with miniscule dialogue with which to work, and a mission of vengeance driving his character.
But beneath that hair, grime and Southern drawl is the same 'heartthrob' that romanced Britney Spears in her big screen debut, Crossroads (2002), meaning Bruce Wayne's public persona isn't too much of a stretch either. If you saw the Jason Statham action flick Safe, you saw Mount's action/combat skills as an evil ex-special forces bagman.
Portraying a brooding man on a secret mission gives Mount an edge at present, with the build and look that would fit right in among Gotham's elite - after that, Batman should be a cakewalk. And as his quirky turn as bespectacled 'Chris' in the underground Poolhall Junkies (2002) proved, he's anything but a one-note performer.