Cover: Curt Swan & George Klein

Action Comics #303

Aug 1963 · DC · 0.12 USD

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“The Monster from Krypton!”

A striking 1963 DC offering, this issue of Action Comics features a Curt Swan and George Klein cover that puts Superman and Supergirl front and center in a wild scenario — Superman has apparently transformed into a massive, serpentine creature, while Supergirl soars nearby and military weapons are trained on the beast near what appears to be a government building. The cover blurb teases "The Monster from Krypton!" alongside a promise of "Supergirl's Big Brother," making this a double-draw for fans of both Kryptonian heroes. Writer Leo Dorfman and artist Jim Mooney bring the interior to life, delivering the kind of imaginative, anything-can-happen storytelling that made early '60s DC so consistently engaging.

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

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Full credits

writer Leo Dorfman

artist, inker Jim Mooney

cover pencils Curt Swan

cover inks George Klein

Full plot ⚠ may contain spoilers

▸ Reveal full plot — may contain spoilers

When the Danvers' son Jan (long believed dead in Korea) returns, Linda shares her secret identity with him and gives him temporary super-powers. She then learns that he is an impostor who wants the real Jan's trust fund, but when he dies saving her from Green Kryptonite she decides not to tell her parents about his ruse.

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