Gunter

Gunter (or Gunther) makes his appearance in "What is Life?," in which he is Ice King's main penguin servant and friend. One of his known duties include using his head as a stand for the Ice King's video game machine. He also tried to warn the Ice King that Finn and Neptr were in the room. Gunter is seen in the Theme Song, in the Ice Kingdom, and with other penguins. He may also have been one of the penguins in the group who wake Ice King up from his coma in "Prisoners of Love." He also might have been one of the penguins attending the Ice King's wedding in "When Wedding Bells Thaw." Gunter is mentioned in "What Have You Done?" when Ice King says: "Gunter pick up Finn's dead carcass."

Appearance
Gunter is apparently very fat for a penguin as Ice King has called him "Daddy's little fatty", though this may only be a joke or a show of affection on Ice King's part. This is likely, since Gunter looks exactly like every other penguin in the Ice Kingdom. He looks like a regular penguin with big eyes, a navy blue back, and a white flat belly.

Behavior
Although Gunter is a penguin, he makes a "quacking" sound, like a duck. It is shown the Ice King sometimes gets agitated by Gunter's actions such as accidentally breaking his video game or making a constant cry, but the Ice King seems to appreciate his company. He is very loyal to the Ice King, but even though he is his servant, Gunter occasionally wanders off. In a way, he acts similar to a puppy.