grailworth

Dr. Walter Johnson

7 appearances · First published 1971

Dr. Walter Johnson (of the Cadmus Project, father of Flippa Dippa) appears in 7 issues in grailworth's catalog, and was first published in 1971.

Every appearance we value

Action Comics (1938) 1 issue

Superboy (1994) 1 issue

Superman (1987) 2 issues

Superman's Pal, Jimmy Olsen (1954) 3 issues

Character appearances from the Grand Comics Database, CC BY-SA 4.0.