Team » Legion of Sivanas appears in 5 issues.
Dr. Sivana is a scientific genius and is one of Captain Marvel's archenemies. He has also been involved with other heroes in the DC universe, and is regularly seen as part of supervillain team-ups.
Thaddeus Jr.'s twin sister and third child of criminal mastermind Thaddeus Bodog Sivana, Georgia has followed in her father's footsteps with a sharp interest in science.
The handsome son of Doctor Thaddeus Bodog Sivana
the youngest of four children. The World's Most Wickedest Boy Scientist, he the spitting image of his dear old dad.
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