|Allies||Scrooge McDuck, Huey, Dewey, and Louie|
|Voice by||Russi Taylor|
|First appearance||Three Ducks on The Condor|
Webbigail "Webby" Vanderquack lives with Scrooge and the triplets. She secretly wants to be accepted as Scrooge's fourth nephew. She is the same age as Huey, Dewey, and Louie, and is the granddaughter of Betina Beakley, also known as Scrooge's maid. She is voiced by Russi Taylor who also voices Huey, Dewey And Louie Duck.
She is the same height as the triplets, and wears a short pink dress and a pink bow. She has slightly upturned feathers on the back of her head, similar to Daisy Duck.
She is very affectionate, caring, emotional, cute, sweet, innocent and beautiful, but often feels neglected - she once ran away from home and went to the Beagle Babes. Her main goal is to become the fourth "nephew", but she keeps it a secret. She is also very fond of animals.
Before Betina became the triplets's nanny, she and Webby were homeless. It is unknown what happened to Webby's parents.