Mouse (Professor Goodfellow's G.E.E.C.)

This mouse accidentally sabotaged the G.E.E.C. computer. Superman found the animal with his X-Ray vision, which was deep within the circuit panels of the computer, and they called in Plastic Man to get him out, and once they got him out, Wendy decided to keep him as a pet.

Appearance
Super Friends
 * Season 1: Professor Goodfellow's G.E.E.C.