Angus McGonagle, the Argyle Gargoyle, gargles Gershwin gorgeously. He was originally booked as the guest star on episode 417 of The Muppet Show but was bumped for the cast of Star Wars when they showed up at The Muppet Theatre. He eventually managed to get on stage, where he was joined by Mark Hamill in gargling "Summertime." Furthermore, in the climactic confrontation of Dearth Nadir and Chewbacca, Nadir called forth McGonagle and the mighty Wookiee proved no match for his Gershwin gargling.