Colossus First Appearance: Giant-Sized X-Men #1
Deadpool First Appearance: New Mutants #98
Copycat First Appearance: New Mutants #98 (as Domino), Deadpool: The Circle Chase #2 (as Copycat)
Weasel First Appearance: Cable #3 & Deadpool: The Circle Chase #1
Blind Al First Appearance: Deadpool #1
Negasonic Teenage Warhead First Appearance: New X-Men #115
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