Other than the differences highlighted in this image, Whizzy appears identical to Streaky in this story.

Whizzy is the 30th Century descendant of Streaky the Supercat. Whizzy has inherited some of his ancestor's powers, and is also a superhero. Unlike his ancestor, Whizzy has Telepathy.

Pre-Zero Hour HistoryEdit

Whizzy and Supergirl first met each other when Supergirl had been summoned from 1962 to stop the Positive Man. When it was revealed that members of the Legion of Super-Heroes had been replaced by Chameleon Men, and Whizzy and Supergirl had been trapped in the Phantom Zone, Whizzy was able to use his telepathy to contact someone outside the Zone and let the two of them out. ("Supergirl's Greatest Challenge!")