Donald's Nephews
Donald's Nephews (1938) is a Donald Duck animated cartoon which features Donald being visited by his three nephews, Huey, Dewey, and Louie. This cartoon is Huey, Dewey, and Louie's very first appearance in animation. The short, and the three nephews, was the idea of Al Taliaferro, the artist for the "Silly Symphonies" comic strip, which featured Donald Duck. The Walt Disney Productions Story Dept. on February 5, 1937, sent Taliaferro a memo recognizing him as the source of the idea for the planned short. Taliaferro subsequently introduced the nephews in his comic strip, which by this time had been renamed "Donald Duck", on Sunday, October 17, 1937, beating the theatrical release of "Donald's Nephews" by almost six months.
List of Donald Duck universe characters
Azure Blue first appeared as an evil miser in "The Golden Helmet" in Four Color #408. In that story, he was revealed to be a descendant of Olaf the Blue (Viking discoverer of America according to that story) and he wanted to find a Golden Helmet so he can be king of North America and make everyone on the continent his slaves, but Donald Duck and his nephews Huey, Dewey, and Louie would not let that happen. Azure was assisted by Lawyer Sharky.