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Who Is Colossal Boy? Origin, Powers and Key Facts

Colossal Boy (DC Comics): Colossal Boy is a member of the Legion of Super-Heroes who can increase his size and strength to gigantic levels.

By the Pop Culture Files editorial team3 min read✓ Fact-checked
Colossal Boy comic character
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Colossal Boy is a DC Comics comic book character, the alter ego of Gim Allon, with over 679 comic issue appearances. Colossal Boy is a member of the Legion of Super-Heroes who can increase his size and strength to gigantic levels.

Who is Colossal Boy?

Origin Colossal Boy by George Perez Gim Allon was born the only son to Wynn and Marte Allon of Earth. He was raised in a patriotic and Jewish family. As a young man, Gim enrolled in the Science Police Training Academy to become a member of the Science Police . While on vacation on Mars with fellow cadet and childhood friend Gigi Cusimano , a strange meteor crashed into the soil near him. The meteor's radiation altered his body's RNA, giving him the power to grow to giant sizes at will. For a short time he used this power to aid him as a Science Police cadet, nearly apprehending the villain who would go on to be the second Starfinger , but his parents encouraged him to pursue justice in other avenues. He joined the Legion of Super-Heroes as an early recruit, alongside fellow applicant Chameleon Boy , whom Gim gave his codename as the other boy reminded him of a chameleon that Gim had as a boy for a pet. The pair were sworn in together and Gim took the name Colossal Boy, Cham and Gim remained good friends throughout their careers and Gim also later became close friends with fellow Earthling, Sun Boy .

Key facts

Colossal Boy is of radiation origin and first appeared in "Hercules in the 20th Century!". The character is published by DC Comics. With 679 recorded issue appearances, Colossal Boy ranks among the most featured characters in comics.

Frequently asked questions

Who is Colossal Boy?

Colossal Boy is a member of the Legion of Super-Heroes who can increase his size and strength to gigantic levels.

What is Colossal Boy's real name?

Colossal Boy's real identity is Gim Allon.

When did Colossal Boy first appear?

Colossal Boy first appeared in "Hercules in the 20th Century!".

Sources

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