One day, Linda Lee was experimenting on a piece of Green Kryptonite in an attempt to find a way to neutralize its deadly effects. When her experiment failed, she tossed the altered Kryptonite out of the window. Unbeknowst to her, her chemical treatment changed it in a different type of Kryptonite, later known as X-Kryptonite.
Later on Midvale, Linda happened upon a stray cat attacked by a vicious dog. Linda saved him, and the cat followed her all the way to the Midvale Orphanage. Delighted, Linda wanted adopt him. Miss Hart let her keep it, and Linda called her new pet cat Streaky by two unusual yellow fur stripes zigzagging along his sides.
Later that night, Streaky wandered over the nearby forest and happened upon the piece of Kryptonite discarded by Linda and was exposed to its radiation. Due to an unique combination of chemicals in X-Kryptonite, it gave Streaky temporary superpowers.
Streaky continued being Supergirl's sidekick until a bizarre lab accident turned all Kryptonite into iron. Gone his power's source, Streaky became a normal cat again.
Streaky had a 30th century descendant named Whizzy (who also had superpowers).
- Energy Projection
- Enhanced Intellect
- Enhanced Vision
- Superhuman Durability
- Superhuman Stamina
- Superhuman Speed
- Superhuman Strength
- A piece of X-Kryptonite
- This version of Streaky, including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.
- Streaky is also known as Streaky the Supercat.
- Streaky is a male tomcat.
- In a letter published in Supergirl #2, Editor E. Nelson Bridwell revealed that Streaky lost his powers during the events of Superman: Sandman Saga
- Supergirl Recommended Reading
- Action Comics (Volume 1)
- Adventure Comics (Volume 1)
- All-Star Comics (Volume 1)
- Supergirl (Volume 1)
- Superman Family (Volume 1)
- Supergirl (Volume 2)
- Infinity Inc. (Volume 1)
- Power Girl (Volume 1)
- Supergirl (Volume 3)
- Supergirl (Volume 4)
- Supergirl (Volume 5)
- Supergirl and the Legion of Super-Heroes (Volume 1)
- Power Girl (Volume 2)
- Supergirl (Volume 6)
- Worlds' Finest (Volume 1)
- Supergirl (Volume 7)
- 48 Appearances of Streaky (Earth-One)
- 11 Images featuring Streaky (Earth-One)
- Quotations by or about Streaky (Earth-One)
- Character Gallery: Streaky (Earth-One)
Superman Family member