[3] In 2003, he appeared in AC Comics' Sentinels of America #1, along with Black Terror, Miss Masque, Fighting Yank, and The Scarab.

In 1940, scientist Andrew Bryant discovers that bathing himself in a combination of gamma and infrared rays will grant him superpowers.

[5] According to Jess Nevins' Encyclopedia of Golden Age Superheroes, "his enemies vary from German ("Nazonians") and Japanese agents to Dr. Allirog, a Moreau-like mad scientist who creates "fiendish monsters" and who transplanted his brain into the body of a bear with the head, hands and feet of a gorilla, to Dr. Bio, who creates horse-sized tarantulas with human faces, to kaiju-sized alligators".

[6] At some point after World War II, Captain Future was trapped in the mystical Urn of Pandora by the misguided Fighting Yank, along with dozens of other heroes.

After bathing himself in gamma and infrared rays, Captain Future gained superhuman strength, flight, and the ability to project energy bolts through his hands, although his powers are only temporary and he must expose himself to the radiation to recharge them.