Calvin Lo
Calvin Lo is credited as colorist on 23 issues, penciller on 5 issues and inker on 5 issues in grailworth's catalog, 14 issues of them across 5 series we value. Characters first seen in issues they wrote or drew include Mary Zero and Tarantula.
Characters they introduced
Every issue
Darkminds (1998) 2 issues
Spider-Girl (1998) 1 issue
Vampi (2001) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.