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    Thaddeus Sivana Jr.

    Character » Thaddeus Sivana Jr. appears in 54 issues.

    the youngest of four children. The World's Most Wickedest Boy Scientist, he the spitting image of his dear old dad.

    Short summary describing this character.

    Thaddeus Sivana Jr. last edited by MarcosZ on 10/30/21 04:59AM View full history

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