Mike Newhall
Mike Newhall is credited as colorist on 18 issues, penciller on 3 issues, inker on 2 issues, letterer on 2 issues and others in grailworth's catalog, 15 issues of them across 4 series we value.
Every issue
Megaton Man (1984) 1 issue
The Spirit (1977) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.