Dr. Sivana
Doctor Thaddeus Bodog Sivana Sr. is one of the greatest enemies of the superhero Captain Marvel. First appearing in the DC Whiz Comics#2, based on the adventures of the superhero, Dr. Sivana is a brilliant scientist, associated with various sinister organizations, including the Monster Society of Evil and the Secret Society. The Justice League: Gods and Monsters' adaptation of the character appears as a bit player in the Non-Disney vs. DC Villains War.

Non-Disney Vs DC Villains War

Dr. Sivana appears as one of CADMUS' associates in the war. Kent Mansley, also an associate, holds a meeting, where he informs the group, about the the severity of the situation, regarding about the crash of a "meteor", that it revealed to be an unusual and different type of supernatural power. Taking it to his regard, Dr. Sivana assembles a group of scientists, to deal with the situation. Suddenly, he is under attacked by Black Knight and the Rooters, who appear, with intentions to kill them. Dr. Sivana is helpless, as he is brutally murdered by the Rooters' elite warriors, the Metal Men.

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