He is a dark green fish who wears a pink-striped uniform and a white apron with a red bow-tie. He also wears a peanut and a boater hat on his head.
He seems to have an attitude very similar to Squidward. He does not seem to enjoy his job and seems tired while working there. He also finds SpongeBob and Patrick annoying because of how inconsiderate and childish they act when eating the sundaes.
Role in series
The SpongeBob SquarePants Movie
He serves several Triple Gooberberry Sunrises to SpongeBob and Patrick while getting excess ice cream drippings spat at him in the process. He later wakes SpongeBob and Patrick up the next morning and tells them to leave.
The SpongeBob SquarePants Movie (video game)
He appears as an enemy, and his broom that he used to clean up in the movie is his weapon.
Walter appears when Patnocchio and Plankton walk into Goofy Goober's Ice Cream Party Boat. Both Patnocchio and Plankton wreck the place and the waiter at first cheers them on.
Later, Patnocchio and Plankton destroy many ice cream dispensers, which all gets on him and looks like a snowman. He looks down at both Patnocchio and Plankton and has burning ice cream in his eyes. He then kicks both Patnocchio and Plankton out of the restaurant.