|This article belongs to the Classic Continuity|
Cow Alien is a minor alien character who first appeared in Store 23.
Cow Alien is a big cow-like alien with 6 horns and realistic, horizontal cow pupils. She wears some kind of pants-like machine around her lower body. A piece of what appears to be the pants covering her udder is seen, but not completely.
Ben 10: Omniverse
- The End of an Era (future; cameo)
- Cow Alien is based on the character Cow from Cow and Chicken and shares her voice actor.