Len Brown
Len Brown is credited as writer on 21 issues in grailworth's catalog, 14 issues of them across 7 series we value. Characters first seen in issues they wrote or drew include Dynamo, Iron Maiden, Kitten and Weed.
Characters they introduced
Every issue
Creepy (1964) 1 issue
Mars Attacks (1995) 1 issue
Nightmare (1970) 1 issue
Psycho Annual (1972) 1 issue
T.H.U.N.D.E.R. Agents (1965) 4 issues
Credits from the Grand Comics Database, CC BY-SA 4.0.