Arthur Adler
Arthur Adler is credited as writer on 6 issues in grailworth's catalog, 5 issues of them across 3 series we value. Characters first seen in issues they wrote or drew include Dr. Edward Clariss and The Rival.
Characters they introduced
Every issue
Batman (1940) 1 issue
Exciting Comics (1940) 1 issue
Flash Comics (1940) 3 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.