* HeyItsThatVoice:
** [[WesternAnimation/DennisTheMenace Margaret Wade]] and [[WesternAnimation/MrBogus Tommy Anybody]] are Huey.
** Dewey is [[WesternAnimation/{{Recess}} Spinelli]] and [[WesternAnimation/KingOfTheHill Bobby Hill]].
** The voice of [[WesternAnimation/{{Rugrats}} Tommy]] [[WesternAnimation/AllGrownUp Pickles]], [[WesternAnimation/ThePowerpuffGirls Buttercup]], and [[WesternAnimation/ChalkZone Rudy Tabootie]] can be heard as Louie (and occasionally one of the others when the animators and voice actors miscommunicate).
* WhatCouldHaveBeen: One of the discarded concepts for the show was for it to be an actual sequel to WesternAnimation/DuckTales, with Donald taking the nephews back from Scrooge in the pilot episode. However it was decided that the show should follow the cartoons in spirit rather than the comic books, hence all the human characters, the emphasis on slapstick and the absence of characters that originated in the comics.