- Not to be confused with Streak.
Streaky was a cat owned by the Kent family.
Streaky was distrusting, but grew to like new arrival Kara so much that he would spend most of his time in Kara's room. He would often hiss at strangers, including the Unity-possessed Kents and the Martian J'onn J'onzz, who did not gain the cat's trust until he reverted to his true form.
In the Silver Age, Streaky was the Supercat, an ordinary house cat that gained superpowers when Supergirl experimented with X-Kryptonite. It became part of the Superman family, alongside other animals like Beppo the Supermonkey, Krypto the Superdog and Comet the Superhorse. Post-Crisis, several red tabby cats have appeared, but none has gained super powers. Streaky's history is referenced in "Mxyzpixilated", when Mr. Mxyzptlk makes the cat fly.