Walt Flanagan
Walt Flanagan is credited as penciller on 11 issues, cover artist on 2 issues and inker on 1 issue in grailworth's catalog, 4 issues of them across 2 series we value.
Every issue
Batman Cacophony (2009) 3 issues
Batman: The Widening Gyre (2009) 1 issue
Credits from the Grand Comics Database, CC BY-SA 4.0.