Heitor Oliveira
Heitor Oliveira is credited as penciller on 8 issues and cover artist on 2 issues in grailworth's catalog, 7 issues of them across 4 series we value.
Every issue
Fantastic Four Unplugged (1995) 1 issue
Force Works (1994) 2 issues
Iron Man (1968) 3 issues
Secret Weapons (1993) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.