The Gills Brothers are a quartet of fish singers featured several times on The Muppet Show. The Gills Brothers debuted in episode 312 as musicians in a fish band playing "Octopus' Garden." They sang songs for quartet in episode 402 and episode 424, accompanied the Fish Singer in episode 413, and sang the backups for Lew Zealand's rendition of "Goodnight Sardine" in episode 521. They are a parody of the Mills Brothers, and are performed by Jim Henson, Jerry Nelson, Richard Hunt, and Steve Whitmire. The puppets were often seen as background characters on The Ghost of Faffner Hall. Notably, three of them appeared as "The Gargles" in "Delighting in Sounds." One of their numbers was choreographed by Dave Goelz.[1]