From Johnny Depp to Angelina Love , A - list celebrities line up to appear in movies . In `` The Simpsons , '' Cartwright not only voices Bart , but other characters including Nelson Muntz , Ralph Wiggum and Todd Flanders . Robin Williams 's role as the genie in ` ` ' '' removed stigma of voice artists . Traditional voice artists rely on their versatility to survive .
From Johnny Depp to Angelina Love , A - list celebrities line up to appear in movies . Robin Williams 's role as the genie in ` ` ' '' removed stigma of voice artists . Traditional voice artists rely on their versatility to survive .