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Who were Kal-El’s biological parents on Krypton?

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Christopher Reeve as Superman in a blue suit with red cape and yellow belt, flying with one arm forward against a dark background in a publicity still from Superman: The Movie. — Superman Christopher Reeve in Superman (1978), directed by Richard Donner.

Kal-El’s biological parents on the planet Krypton were the scientists Jor-El and Lara.1