Duke is an anthropomorphic duck wearing 17th century clothing.
He was first thought up by Plucky, along with Buster and Babs, who got tired of doing comedy. He was first imagine when a archer launched an arrow on fire to him but he caught it in time, only to have his hand burn. He later appears in the middle of the cartoon where he swung from on top of the boat and take Daphne Despair away from Lance. During the Battle when Duke took out his sword, pulls out twin rocket launchers and sank the ship. While the ship was sinking, Daphne fainted again and fell in the ocean, with Lance telling Duke he caught her the last time.
- In the cartoon "Dawn of Despair", Duke represent Shakespearean Drama genre.
- Duke Pluckius might be based on the Daffy Duck character The Scarlet Pumpernickel in the 1949 cartoon with the same name.