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History of character is unknown.
- Colossal Boy was voiced by Adam Wylie.
- 14 Appearances of Gim Allon (LSHAU)
- 5 Images featuring Gim Allon (LSHAU)
- Quotations by or about Gim Allon (LSHAU)
- Character Gallery: Gim Allon (LSHAU)
Legion of Super-Heroes member