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- Radioactive Man in Journey into Mystery #93
- Rage in Avengers #326
- Ransak the Reject in Eternals #8
- Random in X-Factor #88
- Red Ghost in Fantastic Four #13
- Red Guardian in Avengers #44
- Red Skull in Captain America #7
- Rhino in The Amazing Spider-Man #41
- The Rigellians in Thor #129
- Rogue in Avengers Annual #10
- Rom in ROM #1
- Ronin in New Avengers #11 (identity revealed as Echo in #13)
- Rose in The Amazing Spider-Man #83
Read more about this topic: List Of First Appearances In Marvel Comics Publications