Richard Powers
Richard Powers is credited as cover artist on 5 issues in grailworth's catalog, 5 issues of them across 4 series we value.
Every issue
Boris Karloff Thriller (1962) 1 issue
Doctor Solar, Man of the Atom (1962) 2 issues
Starstream (1976) 1 issue
UFO & Outer Space (1978) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.