Sergeant Calhoun is a major character in Disney's 2012 animated feature film, Wreck-It Ralph. She serves as the non-playable protagonist of the first-person shooter game Hero's Duty, where she must fend off monsters known as the Cy-Bugs. Calhoun was programmed with "the most tragic backstory ever", rendering her stoic and no-nonsense. She ironically finds herself teaming up with the ever-cheerful Fix-It Felix Jr. on his journey to find Wreck-It Ralph, after the latter accidentally unleashed the Cy-Bugs upon the arcade during his game-jumping adventures.