He is a bald eagle dressed in a standard mailman uniform with a gold belt to go along with it. The top of his head is red, as well as his eyes, and he has 7 blond hair strands of different sizes. He also has thick black eyebrows and a rough black outline in the middle part of his beak that extends outside of it into his head but does not reach its point.
Episode appearances
Season 6
"The Slip": His first and only major role. He gets in a feud with Richard over a package.
Gallery
Trivia
Mr. Gruber speaks with a thick German accent.
Some of Mr. Gruber's concept designs include a regular human, an antropomorphic cardboard box and a different type of bird that's more akin to a stork.
Mr. Gruber is never mentioned by name in the series, with the only hint towards even his surname being his brother's "Gruber's Ices" ice cream truck.
Mr. Gruber is very likely to be based on the character Simon Gruber from the movie Die Hard with a Vengeance, due to his similar voice and motivations. He also mentions a brother named Hans, presumably a reference to the aforementioned character's brother from Die Hard.
