Public Domain Super Heroes


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RocketComics v1 6 1000-copy

Real Name

Cosmo Grant

First Appearance

Name-It Comics #1 (Dec. 1940-Jan. 1941)

Original Publisher

Maple Leaf Publishing

Created by

Spike Brown


Fulfilling a promise made to his dying father, wealthy Canadian scientist Cosmo Grant fought injustice using his "white magic" (which was simply scientific genius so advanced it APPEARED to be magical in nature).

His base of operations was a laboratory somewhere on the west coast of Canada.

His foes included Thorm the Birdman, Nazi Scientist Von Cadaver, and even Hitler himself.

Cosmo was a sci-fi adventurer who (it is believed) appeared regularly throughout all 5 volumes of Maple Leaf Publishing's Rocket Comics. However, because this series is extremely rare and hard to come by, only his appearances below can be confirmed.

He had a sidekick/partner named Captain Tom "Hoot" Hadden.

Golden Age Appearances

  • Rocket Comics
    • vol. 1, #2-8
    • vol. 2, #1, 5, 7, 9-10
    • vol. 3, #1
    • vol. 4, #3
    • vol. 5, #5-6, 10
  • Name-It Comics #1

See Also

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