Mentor
Mentor (1st Mentor, Shi'ar Imperial Guard) appears in 15 issues in grailworth's catalog, and was first published in 1977. First appearance: X-Men #107 (1963), cover dated 1977.
First appearance
Every appearance we value
All-New X-Men (2013) 2 issues
Classic X-Men (1986) 2 issues
Guardians of the Galaxy (2013) 1 issue
Imperial (2025) 1 issue
Inhumans (2000) 1 issue
Marauders (2022) 1 issue
New Mutants (2020) 3 issues
X-Men (1963) 3 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.