Billy Graham
Billy Graham is credited as penciller on 53 issues, inker on 45 issues, cover artist on 19 issues and writer on 9 issues in grailworth's catalog, 57 issues of them across 15 series we value. That includes 1 key issue, such as Hero for Hire #1 (1972). Characters first seen in issues they wrote or drew include Vampirella, Evily, Draculina and Adam Van Helsing.
Key issues
Characters they introduced
Every issue
Creepy (1964) 1 issue
Eerie (1965) 2 issues
Giant-Size Power Man (1975) 1 issue
Haunt of Horror (1974) 2 issues
Journey into Mystery (1972) 1 issue
Marvel Treasury Edition (1974) 1 issue
Monsters Unleashed (1973) 1 issue
Power Man (1974) 2 issues
Power Man and Iron Fist (1981) 2 issues
Vampire Tales (1973) 1 issue
Vampirella (1988) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.