Markalan Joplin
Markalan Joplin is credited as writer on 40 issues in grailworth's catalog, 39 issues of them across 5 series we value. Characters first seen in issues they wrote or drew include Sue Graham.
Characters they introduced
Every issue
Justice Machine (1987) 2 issues
Robotech Special (1988) 1 issue
Robotech: The Macross Saga (1985) 20 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.