Referenced with still photos after their disastrous offscreen tryouts, but not appearing in any new scenes, are recurring guests Dippy, Al B. Quirky, Stockingstein, Slipped Disc Jockey, Gorilla, Skinny Grossguts, and Bill's Dad.
At the time this episode first aired, A Squeak in the Deep (1966) had not yet been released by Warner Bros. on DVD or Blu-ray, and it is presented in a recently-restored print that debuted with an earlier MeTV broadcast.
Regular cast members Goldie Fisher and Mr. Quizzer do not appear in this episode (even though Mr. Quizzer is listed among Kevin Fleming's credits at the end).
Featured recurring guests are riverboat gambler Samuel Q. Steamboat, bean-loving rail yard tramp Boxcar, gloomy "whether woman" Misty Drizzle, and law enforcement specialist Det. Abouttoretire, along with special appearances from Toony's arch-rival Kerwyn (the prehistoric rubber chicken sidekick from Svengoolie (1995)) and MeTV horror host Svengoolie, himself (who joins the show from his studio coffin).