- This is the article on the nephews from the original series; for the 2017 versions see Huey, Dewey, and Louie Duck (2017).
Huey, Dewey and Louie Duck are the triplet nephews of Donald Duck, and the grand-nephews of Scrooge McDuck. They move in with their uncle Scrooge when Donald joins the Navy. They're the sons of Donald's sister, Della Duck, who never appeared in the series. They were all voiced by Russi Taylor.
Huey (full name: Hubert Duck) is the leader of the trio, and the bravest of the 3 brothers. He usually makes sure Dewey's plans are all in line, and Louie doesn't fall into trouble. He usually wears red clothes.
Dewey (full name: Deuteronomy Duck) is the brainy sibling, and is also very well organised. He usually comes up with the plans. He usually wears a blue shirt.
Louie (full name: Louis Duck) is the kindest of the group, and very laid-back and carefree and gentle. He is also very creative. He usually wears a green shirt.
- Scrooge McDuck - is Huey Dewey and Louie's granduncle;they stayed with him after their uncle Donald Duck (1987) joined the navy.
- The Beagle Boys - A gang of Crooks who try to rob Scrooge.
- Flintheart Glomgold - The world's second richest duck and Scrooge's primary rival.
- Magica de Spell - An evil witch who tries to steal Scrooge's Number One Dime so she can use it for power.
- In the 2017 reboot, Louie wears a green hoodie, Huey wears a red collared t-shirt, and Dewey wears a dark blue shirt with light blue long sleeves, and they Huey is the only triplet to wear a cap in the reboot.