| N'astirh | N'astirh | Villain | X-Terminators 1 | |
| Nakota | Unrevealed | Villain | ||
| Nanny | Villain | |||
| Nebula | Unrevealed | Villain | Avengers 257 | |
| Necrom | Unrevealed | Villain | Excalibur 45 | Deceased |
| Nefarius | Llyod | Villain | ||
| Nightmare | None | Villain | Strange Tales 110 | |
| Nightshade | Tilda Johnson | Villain | Captain America 164 | |
| Nova | Frankie Raye | Villain | Fanastic Four 257 | |
| Occulus | Occulus | Villain | Fanastic Four 363 | |
| Omega Red | Arkady Russovich | Villain | X-Men 4 | |
| Onslaught | Charles Xavier | Villain | X-Men 53 | Deceased |
| Orphan-maker | Peter | Villain | ||
| Outcast | Unrevealed | Villain | ||
| Override | Greg | Villain | The Spectactular Scarlet-spider 1 | |
| Owl | Leland Owlsley | Villain | Daredevil 3 | |
| Plunderer | Parnival Plunder | Villain | Daredevil 12 | |
| Post | Tremain | Villain | X-Men 50 | |
| Pro | Unrevealed | Villain | Scarlet Spider 1 | |
| Professor | Kamo Tharnn | Villain | Thor 235 | Deceased |
| Proteus | Joseph MacTaggart | Villain | Uncanny X-Men 125 | Deceased |
| Prowler II | Rick Lawson | Villain | ||
| Psychoman | Unrevealed | Villain | Fantastic Four Annual 5 | |
| Pulse | Unrevealed | Villain | Web Of Spider-man 91 | Deceased |
| Puma | Thomas Fireheart | Villain | Amazing Spider-man 256 | |
| Puppet Master | Phillip Masters | Villain | Fantastic Four 8 | |
| Radioactive Man | Chen Lu | Villain | Journey into Mystery 93 | |
| Rama-Tut | Unrevealed | Villain | Fantastic Four 19 | |
| Red Ghost | Ivan Kragoff | Villain | Fanastic Four 13 | |
| Red Ronin | None | Villain | Godzilla 7 | |
| Red Skull | Johann Shmidt | Villain | Captain America Comics 1 | |
| Red Wolf | Will Talitrees | Villain | Avengers 80 | |
| Risque | Gloria Munoz | Villain | X-Force 55 | |
| S'ym | S'ym | Villain | Uncanny X-Men 160 | |
| Sandstorm | Anthony Trainer | Villain | Web of Spider-man 107 | |
| Saracen | Unrevealed | Villain | Punisher War Journal 25 | |
| SAT-YR-9 | Opal Luna Saturnyne | Villain | Excalibur #3 | |
| Saturnyne | Opal Luna Saturnyne | Villain | ||
| Scarecrow | Ebenezer Laughton | Villain | Tales Of Suspense 51 | |
| Scarlet Centurion | Unrevealed | Villain | Avengers Special 2 | |
| Scarlet Spider II | Joe Wade | Villain | Scarlet Spider 2 | Deceased |
| Schemer | Richard Fisk | Villain | Amazing Spider-man 83 | Deceased |
| Scorcerer | Unrevealed | Villain | Alpha Flight 71 | |
| Scorpion | Max Gargon | Villain | Amazing Spider-man 20 | |
| Scrier | Unrevealed | Villain | Amazing Spider-man 394 | |
| Selene | Selene | Villain | New Mutants 9 | |
| Senyaka | Unrevealed | Villain | ||
| Shadow King | Amahl Farouk | Villain | Uncanny X-Men 117 | |
| Shiva | Shiva | Villain | Wolverine 50 | |
| Shock | Ariel Fagan | Villain | Daredevil 314 | |
| Shotgun | Unrevealed | Villain | Daredevil 272 | |
| Shriek | Frances Barrison | Villain | Spider-man Unlimited 1 | |
| Siege | John Kelly | Villain | Deathlok Vol.2 #19 | |
| Silence | Unrevealed | Villain | Web Of Spider-man 91 | Deceased |
| Silver Fox | Unrevealed | Villain | ||
| Silvermane | Silvio Manfredi | Villain | Amazing Spider-man 73 | |
| Sin-Eater | Stan Carter | Villain | Spectactular Spider-man 107 | Deceased |
| Sinsear | Unrevealed | Villain | Cable 1 | |
| Slayback | Terraerton | Villain | Deadpool mini I #1 | |
| Slug | Ulysses X. Lugman | Villain | Captain America 325 | |
| Sluggo | Bernard Hoyster | Villain | ||
| Solarr | Silas King | Villain | Captain America 160 | |
| Speed Demon | James Sanders | Villain | Amazing Spider-man 222 | |
| Spencer Smythe | Spencer Smythe | Villain | Amazing Spider-man 25 | |
| Sphinx | Unrevealed | Villain | Nova 6 | |
| Spider-Slayer | Spider-Slayer | Villain | Amazing Spider-man 25 | |
| Spidercide | Peter Parker clone | Villain | New Warriors 61 | Deceased |
| Spiral | Spiral | Villain | Longshot 3 | |
| Splice | Unrevealed | Villain | Wonder Man 4 | |
| Spymaster | Unrevealed | Villain | Iron Man 33 | Deceased |
| Stegron | Vincent Stegron | Villain | Marvel Team-Up 19 | |
| Stilt Man | Wilbur Day | Villain | Daredevil 8 | |
| Stonecold | Unrevealed | Villain | ||
| Strikeback | Anthony Davis | Villain | ||
| Stunner | Angelina Brancale | Villain | Amazing Spider-man 397 | |
| Swarm | Unrevealed | Villain | ||
| Swift-1 | Unrevealed | Villain | Web Of Spider-man 92 | Deceased |
| Tarantula | Luis Alvarez | Villain | Amazing Spider-man 134 | Deceased |
| Taskmaster | Unrevealed | Villain | Avengers 195 | |
| Tendril | River Verys | Villain | Spider-man: The Final Adventure 1 | |
| Terrax | Tyros the Terrible | Villain | Fantastic Four 211 | Deceased |
| The Rose | Richard Fisk | Villain | Amazing Spider-man 253 | |
| Thorn | Lucia Callasantos | Villain | ||
| Threnody | Unrevealed | Villain | X-Men 27 | |
| Thundra | Thundra | Villain | Fantastic Four 129 | |
| Tiger Shark | Todd Arliss | Villain | Sub-Mariner 5 | |
| Tinkerer | Unrevealed | Villain | Amazing Spider-man 2 | |
| Titania | Mary MacPherran | Villain | Secret Wars 3 | |
| Tolliver | Tyler Dayspring | Villain | X-Force 4 | Deceased |
| Tombstone | Lonnie Lincoln | Villain | Web of Spider-man 36 | |
| Tower | Unrevealed | Villain | X-Factor 2 | |
| Trapster | Peter Petruski | Villain | Strange Tales 104 | |
| Typhoid Mary | Mary Walker | Villain | Daredevil 254 | |
| Ulik | Ulik | Villain | Thor 137 | |
| Ultron | None | Villain | Avengers 55 | |
| Unicorn | Milos Masaryk | Villain | Tales of Suspense 56 | |
| Unus | Gunther Bain | Villain | Uncanny X-Men 8 | Deceased |
| Vanguard | Nicolai Krylenko | Villain | Iron Man 109 | |
| Vanisher | Unrevealed | Villain | Uncanny X-Men 2 | |
| Venom | Eddie Brock | Villain | Amazing Spider-man 300 | |
| Vermin | Edward Whealin | Villain | Captain America 272 | Deceased |
| Vincente | Unrevealed | Villain | Generation X 13 | |
| Volcana | Marsha Rosenberg | Villain | Secret Wars 3 | |
| Warfare | Unrevealed | Villain | Web Of Spider-man 92 | Deceased |
| Warrant | Unrevealed | Villain | ||
| Warscar | Unrevealed | Villain | Spectactular Spider-man 210 | |
| Whirlwind | David Cannon | Villain | Avengers 46 | |
| Whisper | Unrevealed | Villain | Web Of Spider-man 91 | Deceased |
| Will O' The Wisp | Jackson Arvad | Villain | Amazing Spider-man 167 | |
| Wizard | Bentley Wittman | Villain | Strange Tales 102 | |
| Wrecker | Dirk Garthwaite | Villain | Thor 148 | |
| X-Cutioner | Carl Denti | Villain | Uncanny X-Men Annual 17 | |
| Xeron | Unrevealed | Villain | Incredible Hulk 136 | |
| Yellow Claw | Unrevealed | Villain | Captain America 164 | |
| Zarathos | Zarathos | Villain | Marvel Spotlight 5 | |
| Zarrko | Artur Zarrko | Villain | Journey Into Mystery 86 | |
| Zodiak | Unrevealed | Villain | Ghost Rider Vol. 2 #10 |
Back to the opening page/ Alpha Flight through The Defenders/ Excalibur through the Hellions/ Heroes through the Inhumans/ The Invaders through The U.S. Govern./ Villains A-E/ Villains F-M/ Villains in groups A-L/ Villains in groups M-Z/ W.H.O. through X.S.E./ And those on their own