• Cross-Dressing Voices: Charlie Adler as Bev Bighead and Gladys the Hippo Lady.
  • Executive Meddling: Joe Murray originally intended for Rocko be yellow, but Nickelodeon insisted that he be recolored a beige-ish color in order to appease the wishes of a toymaker that ultimately never produced any Rocko merchandise. The necessitated (further) alteration of the "Trash-O-Madness" pilot.
  • Hey, It's That Voice!: Buster Bunny is Mr. AND Mrs. Bighead.
    • SpongeBob SquarePants is Heffer.
      • Tom Kenny also lent his voice to several of the supporting cast of characters, including one of the Chameleon brothers, Really Really Big Man, and Peaches. Additionally, he also tends to be the voice behind many of the smaller characters who only make a single appearance in episodes.
    • Plankton is Filburt.
    • And Mr. Crocker is Rocko!
    • Series creator Joe Murray lends his voice as Ed's son, Ralph Bighead.
    • Given that Camp Lazlo was also created by Joe Murray... Let's see, Rocko is Lazlo in English and Swedish. ENGLISH ONLY: Filburt is Edward. Heffer is Slinkman and Lumpus.
    • Spain? Rocko is Stewie.
    • Mexico? Filburt is Johnny Test, while Rocko is Stan Marsh.
  • Keep Circulating the Tapes: At least, before Shout Factory picked up the rights.
    • If you have an uncut version of "The Good, The Bad, and the Wallaby" somewhere, keep circulating that.
  • Talking to Himself: Charlie Adler does the voices for both Ed and Bev.
    • Lampshaded in an episode where Spunky is being chased out of the Bigheads' yard by Ed, knocking over lawn darts that land on sunbathing Bev. Bev thinks she was just sunburned, and says, "Ed, come over here and put some sunscreen on my head. Ed? ED! WHAT? AM I TALKING TO MYSELF?!"
  • What Could Have Been: The B-52's were not the first choice to do the theme music. Joe Murray originally wanted Alan Silvestri to do the theme music but Nickelodeon felt that he wasn't a good composer for animation. His second choice, Danny Elfman, was also turned down by Nickelodeon.
  • The Wiki Rule: The Rocko's Modern Life Wiki