Wikisimpsons - The Simpsons Wiki
- A ^Voiced means the character was voiced.
- A ^Ghost means the character appeared as a ghost.
- A ^Mentioned means the character was mentioned.
- A ^Picture means the character appeared in a picture only.
- A ^Voice only means the character's voice was heard, but they didn't appear on screen.
- Any unmarked characters were non-speaking but had roles in the episode other than background cameos.