Leo Summers
Leo Summers is credited as penciller on 15 issues, inker on 14 issues and writer on 2 issues in grailworth's catalog, 11 issues of them across 4 series we value. Characters first seen in issues they wrote or drew include Devilina, The Bog Beast, Tiger-Man and Kromag.
Characters they introduced
Every issue
Devilina (1975) 2 issues
Weird Tales of the Macabre (1975) 2 issues
Wulf the Barbarian (1975) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.