Kermit

Kermit the Frog was a green (AUDIO: The Green Life) frog. (PROSE: Cat's Cradle: Witch Mark)

Richard Somerset jokingly pretended not to realise that Kermit was not, in fact, "a sentient frog species with an unusual epidermis". (PROSE: Time Lapse)

Behind the scenes

 * Although not mentioned in the DWU, Kermit is one of the main characters from The Muppets.