Doctor Diehard

robot imposter, Extremists, DC

Also known as Dr. Diehard

Appearances

Justice League Europe #15 — 1990-06-00
Justice League Europe #16 — 1990-07-00
Justice League Europe #17 — 1990-08-00
Justice League Europe #19 — 1990-10-00
Justice League America #57 — 1991-12-00
Justice League Europe #34 — 1992-01-00
Justice League America #59 — 1992-02-00
Justice League Europe #35 — 1992-02-00
Supergirl #15 — 1997-11-00
Supergirl #16 — 1997-12-00