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Doctor Thaddeus Bodog Sivana, Sr. is Captain Marvel arch nemesis. A brilliant evil mastermind, he is arguably the archetype for the "mad scientist". Sivana was the first to figure out Captain Marvel's identity, and has been a constant pest to the Big Red Cheese (as he prefers to call the Captain).  Thaddeus Sivana was created by C.C. Beck and Otto Binder, and first appeared inWhiz Comics #2 (February 1940). 
source: http://dc.wikia.com/wiki/Doctor_Sivana

[More on the Character's Bio soon]


Doctor Sivana does not possess any superhuman capabilities.


Sivana is a shrewd businessman and politician. He also possesses a genius-level intellect.