Mark Martin
Mark Martin is credited as penciller on 51 issues, inker on 51 issues, writer on 42 issues, letterer on 41 issues and others in grailworth's catalog, 22 issues of them across 8 series we value. Characters first seen in issues they wrote or drew include Pupshaw.
Characters they introduced
Every issue
Animal Confidential (1992) 1 issue
Critters (1986) 2 issues
Ralph Snart Adventures (1988) 2 issues
S.R. Bissette's Tyrant (1994) 1 issue
Star Wars Tales (1999) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.