!!The Movie
* HeyItsThatGuy: Aside from the three most obvious, Mr. Parrish/Van Pelt is played by [[Film/{{Titanic}} Jonathan]] [[{{Anaconda}} Hyde]], David Allen Grier plays Carl, and Creator/BebeNeuwirth plays Aunt Nora.
** Also, [[Film/LegallyBlonde Laura Bell Bundy]] plays the young Sarah.
** Elder Sarah is [[WesternAnimation/ABugsLife Rosie]] and [[WesternAnimation/ToyStory3 Dolly]].
** Peter is [[Disney/BeautyandtheBeast Chip]] and [[WesternAnimation/AdventuresOfSonicTheHedgehog Tails]].
** [[Film/SpiderMan Mary Jane]] is Judy.

!!The Cartoon
* HeyItsThatVoice
** Alan is [[WesternAnimation/{{Gargoyles}} Broadway]] and [[WesternAnimation/SpongebobSquarepants Patrick]].
** And TimCurry is Trader Slick. And how.
** Aunt Nora is [[{{Rugrats}} Didi Pickles]].
** Professor Ibsen is [[Film/BladeRunner JF Sebastian]] and [[{{Series/Deadwood}} EB Farnum]]
** Van Pelt is [[WesternAnimation/BatmanBeyond Blight]] and [[WesternAnimation/MenInBlack Buzzard]].
** Captain Squint is [[WesternAnimation/TheCritic Duke Phillips]] and [[WesternAnimation/MenInBlack Zed]].
** Dee Bradley Baker makes a guest appearance as the voice of Mudboy, not suprising considering his other work.
** Judy is [[WesternAnimation/TheAdventuresOfJimmyNeutronBoyGenius Jimmy Neutron]]
** Peter [[Creator/AshleyJohnson is]] [[WesternAnimation/{{Recess}} Gretchen Grundler]]
** The Sand King is JimCummings
** Both Ant Queens are [[XiaolinShowdown Wuya]]

* WhatCouldveBeen: Tim Curry auditioned for Van Pelt before being cast as Trader Slick.
** Trader Slick was intended to have a Bugs Bunny like New York accent.
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