Trivia: Dexter's Laboratory

  • Actor Allusion: Koosalagoopagoop is voiced by Dom De Luise and is a parody of the increasingly saccharine Don Bluth movies DeLuise had been in, like A Troll in Central Park.
    • Koosie making a pepé wrap is also an allusion to De Luise's second career as a cook.
    • Rasslor from the Dial M For Monkey episode of the same name was voiced by Randy Savage. His last line in the episode was, naturally, "OH YEAAAH!".
    • "Just An Old Fashioned Lab Song" is wall-to-wall references to guess star Paul Williams' music and personal life. They even got his car right!
  • Adored by the Network: Well not surprising considering it was one of Cartoon Network's first successful original animated series. But from 98-2001, it, along with Powerpuff Girls were the flagship shows of the network.
  • Cross-Dressing Voices: Dexter was voiced by two women in English.
    • In Mexican Spanish, German, Danish and Portuguese dubs; Dexter is voiced by a man.
  • The Danza: Paul Williams himself guest stars in the episode "Just an Old Fashioned Lab Song" as Dexter's piano instructor.... Prof. Williams, who is drawn roughly the same hight as Dexter.
  • Hey, It's That Voice!: Dexter's first voice was Chuckie Finster, Babe, and Gosalyn Mallard (Christine Cavanaugh); his second voice was Sweetie Bird, Lonette, and that loud, obnoxious teacher (and the mom) from Cow and Chicken (Candi Milo).
  • Keep Circulating the Tapes: Bits of the first season were released on a now out-of-print VHS tape, the same goes for a collection of Genndy's favorite episodes. "Ego Trip" was released only on VHS, and that's out of print as well. The first season did get an official DVD release, but it does not include the banned "Dial M for Monkey" cartoon "Barbequor". Thankfully, the entire series (sans "Barbequor" and "Dexter's Rude Removal") is available on iTunes, and the entire first and second seasons (again barring "Barbequor") are available on Netflix.
    • "Barbequor" is available on Netflix in the UK.
  • Missing Episode: "Dexter's Rude Removal", an episode the crew made for themselves as a joke which contained heavy use of profanity that not even Cartoon Network would find permissible. Before the end of 2012 it had been aired outside crew parties only once, at a Genndy Tartakovsky panel at a convention where they kicked out everyone under 18. [adult swim] released the episode for a brief period on YouTube.
  • Official Fan-Submitted Content: The script for "Dexter and Computress Get Mandark!".
  • The Other Darrin: Dexter's VA went from Christine Cavanaugh to Candi Milo when the former retired from voice acting early on in the last two seasons.
    • Dee Dee's VA continuously alternated between Allison Moore and Kat Cressida.
  • Shrug of God: Even the series creator Genndy Tartakovsky isn't certain about what Dexter's bizarre accent is supposed to be.
  • Talking to Himself: Frank Welker does this whenever both Monkey and Quackor face off.
    • Eddie Deezen voiced Mandark and his sister Lalavava.