Azure Blue is a villain who appeared in the Donald Duck comic book story The Golden Helmet. He claims to be a descendant of Olaf the Blue. He was assisted by Lawyer Sharky. Donald and the nephews managed to defeat him. He appeared again in The Lost Charts of Columbus where Gladstone Gander fishes out the Golden Helmet and Donald and the nephews have to find a more valuable treasure in order to defeat him again. Azure Blue has made a lot of cameo appearances since then especially on Duck Tales #1B.