| Super Name: | Colossal Boy |
| Real Name: | Gim Allon |
| Aliases: |
Gim Allon Micro Lad Leviathan |
| Publisher: | DC |
| Gender: | Male |
| Character Type: | Radiation |
| 1st Appearance: | Action Comics #267 |
| Appears in: | 307 issues |
| Birthday: | |
| Died: |
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Giganta ( 6 - 6 ) |
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Elasti-Girl ( 5 - 0 ) |
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Hulk ( 4 - 11 ) |
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Superman ( 4 - 24 ) |
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Zeus ( 3 - 0 ) |
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Micromax ( 3 - 0 ) |
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Trigon ( 3 - 0 ) |
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Varnae ( 3 - 0 ) |
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Prowl ( 3 - 0 ) |
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Imperiex ( 3 - 0 ) |
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Maul ( 3 - 0 ) |
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Swamp Thing ( 3 - 0 ) |
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Maelstrom ( 3 - 0 ) |
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Big Bertha ( 3 - 0 ) |
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Fem Paragon ( 3 - 0 ) |
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Ramhorn ( 3 - 0 ) |
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Shrinking Violet ( 3 - 0 ) |
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Jazz ( 3 - 0 ) |
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Maxam ( 3 - 0 ) |
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Gentle ( 3 - 0 ) |
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Superman ( 4 - 24 ) |
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Hulk ( 4 - 11 ) |
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Giganta ( 6 - 6 ) |
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Goku ( 2 - 6 ) |
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Mr. Fantastic ( 3 - 3 ) |
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Surtur ( 3 - 3 ) |
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Apocalypse ( 3 - 3 ) |
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Iceman ( 3 - 3 ) |
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Atom Smasher ( 3 - 3 ) |
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Sesshomaru ( 1 - 2 ) |
Member of the Legion of Super-Heroes. The Legion of Super-Heroes are a super group based in the 30th and 31st centuries of the DC Universe. Edit
Gim Allon was mutated by a radioactive meteorite, gaining the superhuman ability to increase his size, and went by the superhero name of Colossal Boy. With his parents' acceptance, he joined the Legion of Super-Heroes becoming a member with a good position. He had an unspoken crush on fellow Legionnaire Shrinking Violet; this crush was only returned when Violet was replaced by a shapeshifting impostor, a Durlan named Yera.
The two were eventually married; when the disguise was exposed, he discovered that he was still in love with Yera, and they remained married. During this time Gim joined the Science Police and ultimately never returned to the Legion.
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