1) Streaky the Supercat
Unlike Beppo and Comet, Streaky isn’t from Krypton and he’s not a magic centaur with boundary issues. He was just Supergirl’s regular ol’ pet cat during what might be the most wildly irresponsible moment in her career. In 1960’s Action Comics #261, Supergirl was experimenting on a small piece of green kryptonite in hopes of figuring out a way to make it safe for Superman to be around. When she failed, Supergirl just tossed the hunk of kryptonite out her window for anyone to find. That anyone was Streaky, who gained the traditional set of superpowers after being exposed to its newfound radiation, courtesy of Supergirl. He was another founding member of the original Legion of Super-Pets who disappeared with the other pets but in DC’s variety of continuities after Crisis on Infinite Earths, he’s popped up as Supergirl’s regular pet cat on occasion until returning to full power as part of the new League.
