Streaky

Streaky is Kara Zor-El's cat that she found in an alley. He had scratched the nose of one of several dogs surrounding it, and she fell in love with the adorable feline. Said feline took about 4 months before it would stop breaking its claws trying to scratch her. Now he runs her house by being cute.

Streaky is not super-powered, unless you count that he has the power to get away with anything despite being psycho.