|This article is about the dinosaur. You may be looking for the penguin.|
Gunther is a wizard, formerly a dinosaur, who appeared in the episode "Evergreen." He is Urgence Evergreen's apprentice, and possibly his adopted son. Gunther is one of the few characters known to exist before the Mushroom War. Gunther became a wizard after wearing Evergreen's magic crown because he wished to be like Evergreen, his beloved role model.
Before putting on Evergreen's crown, Gunther was a green therapod dinosaur with three fingers on each hand. He had a green tail and a dark green collar of skin around his neck, reminiscent of Shelby's clitellum. As a wizard, Gunther turns into a clone of Evergreen and gains a nose like Ice King's, his skin turns light blue, his tail disappears, he grows long white facial hair, and he gains eyes like Evergreen's.
Gunther is generally very playful and silly. He cares for his master, Evergreen, although Gunther resents him when he is ordered around. Gunther's brain has been altered by Evergreen, most likely to enhance his intelligence. At the end of the episode, it becomes apparent that Gunther's deepest wish is to be like Evergreen; this wish grants him magical ice powers, but he loses his sanity and his features are changed into Evergreen's as a result and he would only say two words: "Gunther, no!" This is due to how he perceived Evergreen to be: a man who is constantly firing ice magic and ordering people around.
- His name being the name randomly used by anyone wearing the Ice Crown may be a side effect of Gunther's wish to be like his master Urgence Evergreen, reflecting Evergreen’s treatment of Gunther. This explains why the Ice King calls many characters Gunther, including penguins and even Marceline at one point.