With a trademark lightning bolt on his side, Streaky the Supercat was Supergirl's very own, completely normal feline friend until he was given superpowers by a strange form of Kryptonite. Unlike Superman and Supergirl, Streaky's powers only include flight, super-strength, speed, super-vision, heat vision, and a human-level intellect, forgoing some of the other classic Kryptonian superpowers like super-hearing, super-breath, and ice breath. There have been a bunch of different versions of Streaky over the years, some super-powered allies and others simply domesticated house cats, but his legacy in the Superman mythos has never been ignored.

Most recently, a female version of Streaky was introduced in the DC Rebirth continuity, one who seemingly had a bizarre romantic relationship with Krypto the Superdog. How that works is beyond us, but we do know that Streaky is still a member of the "Legion of Super-Pets," an animal version of the Justice League that originally just consisted of Superman-related super-pets but has since expanded to include the likes of Ace and Titus the Bat-Hounds, Bat-Cow, and Plastic Man's bird Flexi the Plastic-Bird. Both powered and non-powered versions of Streaky have appeared on "Superman: The Animated Series," "Krypto the Superdog," "Justice League Action," and the live-action "Supergirl" series.