Peter Moon is a character on Frasier.
Peter is one of Daphne's many brothers. They're all described as a wild, partying bunch at Daphne's wedding to Donny, although he isn't seen discernibly interacting with Daphne. When talking to Marty during the rehearsal dinner, Donny clarifies that Peter is the one who, as Martin put it, will eat anything on a dare, and ate his brother, Nigel's bandaid.
- Peter never appears clearly in person, but has been mentioned at times. He appears along with his brothers when they move the pre-wedding party into the room Daphne and Niles are in, discussing their feelings for each other.
- He may have a disorder called Pica, although this isn't mentioned on the show