Sack (Marvel, from X-Men)
Sack (Marvel, from X-Men) appears in 5 issues in grailworth's catalog, and was first published in 1995. First appearance: X-Men #323 (1963), cover dated 1995.
First appearance
Every appearance we value
Civil War: X-Men (2006) 1 issue
X-Men (1963) 3 issues
X-Men: The 198 (2006) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.