Cover: Curt Swan & George Klein

Action Comics #294

Nov 1962 · DC · 0.12 USD

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“The Kryptonite Killer!”

In "The Kryptonite Killer!", Supergirl grapples with jealousy when Comet seems to favor movie star Liz Gaynor over her, but Superman uncovers a startling twist: Comet has lost his memory and no longer recalls his own powers—or even Supergirl. Written by Leo Dorfman and illustrated by Jim Mooney, this 1962 classic features Curt Swan’s dynamic cover and George Klein’s crisp inks, blending superhero drama with a touch of personal mystery.

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writer Leo Dorfman · artist, inker Jim Mooney · letterer Milt Snapinn · cover Curt Swan, George Klein

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Cast · 4 characters

Brainiac Jax-Ur Mr. Mxyzptlk Saturn Queen

Full credits

writer Leo Dorfman

artist, inker Jim Mooney

letterer Milt Snapinn

cover pencils Curt Swan

cover inks George Klein

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

Supergirl thinks that Comet prefers movie star Liz Gaynor, his co-star in a new adventure film, but Superman discovers that Comet now has amnesia and doesn't remember Supergirl, or even that he has super-powers.

Plot details indexed by the Grand Comics Database (CC BY-SA).