Ralph Roberts
Cobalt Man
- Also known as
Appearances
- The X-Men #31 — 1967-04-00
- The X-Men #34 — 1967-07-00
- The Defenders #42 — 1976-12-00
- The Defenders #43 — 1977-01-00
- Hulk Comic #40 — 1979-12-05
- The X-Men #138 — 1980-10-00
- The Avengers #228 — 1983-02-00
- Spider-Man and His Amazing Friends #576 — 1984-03-21
- Spider-Man and His Amazing Friends #577 — 1984-03-28
- Classic X-Men #44 — 1990-02-00
- New Avengers: Illuminati #1 — 2006-05-00
- Civil War #1 — 2006-07-00
- Civil War Chronicles #1 — 2007-10-00
- Civil War Chronicles #2 — 2007-11-00
- Incredible Hercules #129 — 2009-07-00
- Marvel Masterworks: The Uncanny X-Men #14 — 2021-00-00