Gary Dumm
Gary Dumm is credited as inker on 61 issues, letterer on 43 issues, penciller on 36 issues, cover artist on 18 issues and others in grailworth's catalog, 24 issues of them across 7 series we value. Characters first seen in issues they wrote or drew include Mr. Boats, Joyce Brabner and Danielle.
Characters they introduced
Every issue
American Splendor (1993) 1 issue
American Splendor (2006) 2 issues
American Splendor (2008) 1 issue
Negative Burn (1993) 1 issue
The Trespassers (1996) 2 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.