Gemini appeared as part of the "Zodiac" entry in the Official Handbook of the Marvel Universe Deluxe Edition #20.
Joshua Link fell in with a bad crowd in school, becoming more wild and progressing to criminal activities; he started with penny-ante crimes, such as stealing from the grocery, and continuing on to rolling others for money and other valuables.
Working with the criminals Monk and Brackett, Joshua was transporting some stolen materials out of Futura Research Laboratory when they were confronted by Officers Jeff Hanley and Damian Link.
In the ensuing struggle, Joshua and Damian were knocked into a metal chamber where they grasped hands as they were bombarded by "nameless experimental rays", until Brackett managed to deactivate the device.
The criminals dragged Joshua, whose hair had turned stark white away with them, leaving Damian for dead and shooting and killing Officer Hanley.
Each member was based in a different American city (Gemini in Boston, Massachusetts) as part of his nationwide criminal network, with the ultimate goal of world economic and political domination The Zodiac was infiltrated by Nick Fury, posing as Scorpio; the Zodiac fought the Avengers and escaped.
[1] Led by Taurus, the Zodiac later attempted to kill all Manhattan residents born under the sign of Gemini as a show of power, but were thwarted by the Avengers.
[3] Scorpio (Jake Fury) constructed the android Zodiac members, although his plan was thwarted by the Defenders.