 Streaky the Supercat first appeared in "Action Comics" #261 and was created by Jerry Siegel and Jim Mooney.Streaky was the pet of Supergirl, in her identity as Linda Lee.One of a series of super-powered animals including Krypto the Superdog, Comet the Superhorse, and Beppo the Supermonkey that was popular in DC's comics of the 1960s, Streaky was Supergirl's pet cat that was given super-powers by an unusual form of kryptonite.