10 Best Family Guy Characters Only In One Episode

10. Daggermouth

Appearing in the episode, 'A Fish Out of Water', Daggermouth is a name that strikes fear into the hearts of all sea-faring men of Quahog. As told by the stumpy-limbed Seamus, the deadly bluefish once killed a sailor by the name of Salty, and thus has a bounty on his head for $50,000.

Peter, needing the money to pay off a second mortgage, sets out to sea to kill the creature with Joe, Cleveland and Quagmire. They reach a deep cave, where Daggermouth himself sits in a plump armchair, swilling a glass of wine and speaking with a comically articulate English accent.

"Delightfully mad" by his own admission, Daggermouth whips out a civil war pistol and begins to fire. When Peter retaliates by hurling a harpoon straight through him, he is revealed to be a highly sophisticated robot built by - wait for it - Salty himself!

The old fisherman explains that he faked his own death and created the Daggermouth myth for the merchandising opportunities, giving Peter $50,000 in exchange for his silence. Sure enough, the first thing Peter sees on TV when he gets home is a Nickelodeon show featuring Salty's creation, entitled 'Daggermouth and Boom Boom'.

Evidently, raking it in on merchandise and a TV deal is worth the lifetime of seclusion in the middle of the sea.