John Gallagher
John Gallagher is credited as writer on 14 issues, penciller on 14 issues, cover artist on 10 issues, inker on 9 issues and others in grailworth's catalog, 1 issue of them across 1 series we value.
Every issue
Casper the Friendly Ghost (2017) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.