Cumber (カンバー Kanbā), the Evil Saiyan (悪のサイヤ人 Aku no Saiya-jin), is an ancient Saiyan interred by Fu on the Prison Planet. He is the primary antagonist of the Prison Planet Saga and one of the antagonists of the Universal Conflict Saga, before eventually becoming an ally in the New Space-Time War Saga.

Cumber is a very muscular man of towering height. He has long spiky black hair reaching down to his thighs with a single shorter bang hanging over his face. Unlike most Saiyans with pitch-black irises, he has red-irises and visible pupils. He also retains a Universe 7 Saiyan tail which he lets sway freely. While restrained by Fu, he wears a restraint jacket with Fu’s mark on its chest area, which also seemingly blanks out his eyes.

Once he frees himself from his restraints, his outfit is shown to be a red sleeveless shirt with blue baggy pants and white boots. Though he continues to wear a piece of the straiitjacket that covers his mouth, a piece from the left side is shown missing, which reveals a small scar from the left side of his jawline. His attire also appears to be made of similar material to Saiyan armor, as it can stretch and retain its integrity even at Great Ape size.