Oscar Martin
Oscar Martin is credited as penciller on 5 issues, inker on 5 issues, colorist on 2 issues and cover artist on 1 issue in grailworth's catalog, 3 issues of them across 2 series we value.
Every issue
Marvel Comics (2019) 1 issue
Tom & Jerry (1991) 2 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.