Streaky the Supercat

Streaky the Supercat is a fictional superhero pet appearing in American comic books published by DC Comics. The character was created by Otto Binder and Jim Mooney, first appearing in Action Comics #261 (1960) and was created by Jerry Siegel and Jim Mooney. It is Supergirl's pet cat and is also a member of the Legion of Super-Pets, alongside other super-powered animals such as Krypto, Beppo and Comet.

Streaky was being chased by three dogs when he accidentally entered a laboratory he thought was the veterinarian's office. He accidentally turned on a doubling ray that duplicated everything in the laboratory. His best friend Krypto deflected the ray with his super coat and it hit Streaky. Instead of copying Krypto, the ray copied his powers onto Streaky, turning him into Supercat.

As Supercat, Streaky helps Krypto, as well as other heroes like Ace, the Dog Stars and Stretch-O-Mutt, fight crime.

The character gained incredible powers through exposure to X-Kryptonite; such as flight, super-strength, super-speed, invulnerability, and enhanced vision abilities. His distinctive mark is a lightning bolt in his fur running along both sides.