Russell Brand first came to prominence in America during a Video Music Awards hosting stint where he memorably mocked the G-rated purity of the Jonas Brothers, but this Friday, Brand will make his own foray into family-friendly entertainment when he voices a lovable, fluffy Easter Bunny in Hop. It’s only the latest example of a formerly foul-mouthed comedian or a celebrity with a long criminal record finding unexpected success as a voice-over artist for children’s films, but what happens when your kids get a little bit curious about who’s voicing their favorite cartoon characters? Vulture’s rounded up twelve celebrities with shady pasts who’ve successfully made the transition to animation, and to help you out, we’ve suggested what you might want to say when Jaden, Braden, and Caden ask why that funny cartoon monkey got arrested for doing drugs with hookers.