Chico
Chico (Marvel, Conquistador's lieutenant) appears in 4 issues in grailworth's catalog, and was first published in 1968. First appearance: X-Men #50 (1963), cover dated 1968.
First appearance
Every appearance we value
Amazing Adventures (1970) 1 issue
X-Men (1963) 3 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.