Dr. Anderssen
Dr. Anderssen (Marvel) appears in 5 issues in grailworth's catalog, and was first published in 1969. First appearance (flashback): X-Men #60 (1963), cover dated 1969.
First appearance
Every appearance we value
Marvel Fanfare (1982) 1 issue
X-Men (1963) 3 issues
X-Men The Hidden Years (1999) 1 issue
Character appearances from the Grand Comics Database, CC BY-SA 4.0.