Greg Watson
Greg Watson (MJ's Father, typically on Earth-1610) appears in 3 issues in grailworth's catalog, and was first published in 2004. First appearance: Ultimate Spider-Man #50 (2000), cover dated 2004.
First appearance
Every appearance we value
Ultimate Spider-Man (2000) 3 issues
Character appearances from the Grand Comics Database, CC BY-SA 4.0.