The Kallusians were a race of humanoids with deep pink skin, with white or gray hair. Kallusians come from the planet Kallu, third from the sun in the Kallu-Kan star system in the Andromeda galaxy. The Avengers drove a group of Kallusians from their temporary refuge in Earth's Arctic for a distant section of the galaxy where they would again battle the aliens who first drove them from Kallu.
In the Marvel Cinematic Universe, the only known Kallusian was bald with blue skin. They were represented in the Confederacy by Joqo. Along with the Kree, Remorath, Astrans, Rajaks and a sixth species, they offered the remaining HYDRA members protection from a powerful enemy in exchange for resources. However, this deal fell through.