Thad Linnis

A cunning criminal who, by persuading Superman that he has solved the secret of his dual identity and threatening to expose it to the world, attempts to force Superman to remain outside Metropolis for two full weeks while he and his henchmen loot the city with a powerful “super-tank” which can be stopped only by Superman. With Batman’S help, however, Superman eventually comes to realize that Linnis is only bluffing—the villain has no knowledge of Superman’s secret identity—whereupon he and the Dynamic Duo apprehend Linnis and his henchmen before they can put their “tremendous theft-plan” into effect (WF No. 84, Sep/Oct 1956: “The Super-Mystery of Metropolis!”).