Specimen 13

Michael Cromwell, Ultraverse

2 appearancesSince 1996

Specimen 13 first appeared in UltraForce #10 (1996-07), published by Marvel. 2 appearances are indexed across 1 series.

Also known as Mikey Cromwell

Character history

Key issues

1 issue

Across the catalog

1 series

Specimen 13 (Marvel) — First appearance, key issues & comics · Cape Zone