Ken-Dal was a Kryptonian scientist and friend of Jor-El and Lara Lor-Van.
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Kal-L (Earth-Two), DC Database
DC Comics - Earth-0
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Earth-0 Official DC Character
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Ken-Dal (Earth-One), DC Database
Ken Leung - News - IMDb
Earth-0 Official DC Character
Back Issue #148 by TwoMorrows Publishing - Issuu
Kon-El (Prime Earth), DC Database
Earth 2 Issue # 0 (DC Comics)