The aliens are unnamed martians. They wear clothes, like most space creatures appearing in The Backyardigans. They steer a spaceship through outer space and enjoy hearing the music of Los Galacticos. One alien is a fan of Violin Player Tyrone.
The aliens are green. Each alien has a pink tongue, green eye stalks, and white eyes with black pupils. They wear blue suits.
The aliens appear in one episode of The Backyardigans: "Los Galacticos" from season four.