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Characters
Number Twenty-One
Number Twenty-One
Super Name:
Number Twenty-One
Real Name:
Nickname:
Universes:
Earth-616
He and Number Twelve make very painful analyses on Nova as per Dr. Eliot Franklin's dispositions to understand how his powers work.
Member of the Secret Empire Organization.
Credit: marvel.fandom.com
Key Issues & Appearances
1
Significant comic book appearances featuring Number Twenty-One
Key
1ST APPEARANCE
THE AMAZING SPIDER-MAN #356
Volume 1
•
December 1991
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