Freff
Freff is credited as writer on 41 issues, penciller on 1 issue, inker on 1 issue and cover artist on 1 issue in grailworth's catalog, 38 issues of them across 8 series we value. Characters first seen in issues they wrote or drew include Duna.
Characters they introduced
Every issue
Dark Shadows (1968) 3 issues
Doc Savage (1975) 1 issue
Marvel Premiere (1972) 2 issues
Tarzan (1977) 2 issues
The Twilight Zone (1962) 4 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.