Bill Mumy
Bill Mumy is credited as writer on 42 issues in grailworth's catalog, 26 issues of them across 8 series we value. Characters first seen in issues they wrote or drew include Mai, Hsiao, Ch'un and Black Shadow.
Characters they introduced
Every issue
Aquaman (1994) 1 issue
Incredible Hulk (1962) 1 issue
Marvel Super-Heroes (1990) 1 issue
Star Trek (1989) 3 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.