DuckTales
When Donald Duck decides to join the US Navy, he enlists his uncle Scrooge McDuck to look after his nephews, Huey, Dewey, and Louie. Although reluctant to do so due to their hyperactivity, along with his continual pursuit of increasing his wealth and maintaining harsh business ethics, he eventually warms to them upon seeing how smart and resourceful they are, and takes them into his manor as well as a number of adventures. In addition to them, the show features frequent appearances by Gyro Gearloose, an established comic book character, as well as guest appearances by Donald in the first season – this was either a full appearance, or in a cameo scene when Scrooge and his nephews read letters he sends to them, and a few minor appearances by Scrooge's old flame, Glittering Goldie, whose character was adapted from the comic books. The show introduced new characters to the Duck universe; while some were minor including: the nanny Mrs. Beakley, whom Scrooge hires to babysit the nephews; Mrs. Beakley's granddaughter Webby; Scrooge's pilot Launchpad McQuack; Doofus Drake, an admirer of Launchpad and a close friend of the nephews; and the McDuck Manor butler, Duckworth. The second season later introduced three new additional characters as part of the show's stories: "caveduck" Bubba Duck and his pet triceratops Tootsie; and Fenton Crackshell, Scrooge's personal accountant who secretly works as a superhero named Gizmoduck.
Duck family (Disney)
Della Duck (called Dumbella in "Donald's Nephews"; born 1920) is the mother of Huey, Dewey, and Louie. She was first described as Donald's cousin, but was later Donald's twin sister. She was first mentioned in a 1937 "Donald Duck" Sunday strip on October 17, 1937 in which she writes a letter explaining to Donald that she is sending her sons to stay with him. She appears as a child in "The Life and Times of Scrooge McDuck" in which she and Donald are wearing identical sailor suits. Both she and Donald are linked to Scrooge McDuck in equal measure, and yet Donald is always referred to as Scrooge's closest living relative, suggesting she has disappeared or died. In the Don Rosa comic 'Super Snooper Strikes Again', Huey, Dewey and Louie refer to themselves as 'orphaned' suggesting that their parents had died.