A. D. Carter
A. D. Carter is credited as writer on 110 issues, penciller on 110 issues, inker on 108 issues, letterer on 2 issues and others in grailworth's catalog, 55 issues of them across 2 series we value. Characters first seen in issues they wrote or drew include Prince Valiant, King Aguar of Thule, Horrit and Thorg.
Characters they introduced
Every issue
Ace Comics (1937) 53 issues
King Comics (1936) 2 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.