That’s my swingset, and that’s my sandbox. I’m not allowed to go in the deep end. And that’s where I saw the leprechaun.— Ralph
The Simpsons has had hundreds of celebrities lining up to provide voices. Sometimes they play themselves but often—and more successfully it must be said—they voice a new one-time character. Some are so good they're allowed back! Here are the top ten guest stars by official number of appearances:
Below is a complete list of official guest stars to date. Episodes without guest stars are omitted. The regular voice artists are listed in the cast list.