Honk

Honk is an alien of unknown species who befriended two Human NASA maintenance workers named Barney and Junior after the duo launched themselves into space by accident.

Biology
Honk is a short mammalian alien with a fuzzy squirrel-like tail and a long snout with whiskers. He has white fur covering his entire body except for his face, hands and feet, which are brown.

True to his name, Honk communicates solely by honking sounds made with the honk-shaped organ on the top of his head. While Junior can understand Honk's language, Barney hasn't yet mastered this skill.