LEVIATHAN

Previous Name: Colossal Boy.
Real Name: Gim Allon.
Planet of origin: Earth.
First Appearance (historical): Action Comics #267 (1960).
First Appearance (current): Legionnaires #0 (1994).
Legion Entrance (historical): Action Comics #267 (1960).
Legion Entrance (current): Legion of Super Heroes #62 (1994).
Spanish Name: Coloso.

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