Shadow Thief is the name of two fictional supervillain published by DC Comics. The first is a recurring foe of Hawkman named Carl Sands. He was created by Gardner Fox and Joe Kubert, and first appeared in The Brave and the Bold # 36 (July 1961). The second, a man named Hammer first appeared in Vigilante #14 (February 1985), and was created by Marv Wolfman and Trevor Von Eeden.
Carl Sands was a career criminal who was conducting experiments on shadow projection while in jail, which allows him to make contact with an alien explorer named Thar Dan from the Xarapion dimension. In return for saving the creature's life, Sands was given a device known as a Dimensiometer and a pair of ebony gloves that allows him to hold objects while in shadow form.
Later, the Phantom Stranger had him permanently stripped of the Dimensiometer.
While growing up in Japan, American Carl Sands learns ninjutsu techniques and became a rather undistinguished industrial saboteur, accepting unremarkable sums to hinder and eliminate his clients' rivals. The Thanagarian criminal Byth then hires Sands to steal Hawkman and Hawkwoman's ship. To help Sands with this job, Byth gives him a Dimensiometer - a Thanagarian belt device/"shadow vest", which gave Sands the ability to shift his body into a shadow form (his pre-Crisis history is still canon, including his brief membership in the Injustice Gang, and fought the Golden Age Hawks instead).
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