Badass Babes of TV and Movies: From 'Brave' to 'Game of Thrones'

Rambunctious role: Cohan is kicking serious zombie butt as Maggie on "The Walking Dead."

Rough Resume: Previously, Lauren was awesome vampire Rose on "The Vampire Diaries," villain Vivian Volkoff on "Chuck" and "Supernatural" capitalist Bela Talbot.