Dr. Walter Johnson

of the Cadmus Project, father of Flippa Dippa

Also known as

Pre-Crisis: Father of Flippa Dippa. Post-Crsis: DNA donor of the Flip clone.

Appearances

Superman's Pal, Jimmy Olsen #135 — 1971-01-00
Superman's Pal, Jimmy Olsen #136 — 1971-03-00
Superman's Pal, Jimmy Olsen #138 — 1971-06-00
Superman Annual #2 — 1988-08-00
Superman #37 — 1989-11-00
Action Comics #650 — 1990-02-00
Superboy #6 — 1994-07-00