Oswald Silkworth (Earth-616)
Appears in 10 issues
Web of Spider-Man #48
1989
The Spectacular Spider-Man #146
The Spectacular Spider-Man #138
1988
Web of Spider-Man #38
The Spectacular Spider-Man #133
1987
Web of Spider-Man #33
Web of Spider-Man #30
Web of Spider-Man #29
The Amazing Spider-Man #274
1986
The Amazing Spider-Man #268
1985