Cyclops

## Scott Summers / Cyclops

* Abigail Brand - they cooperate since Breakworld (from Ast X-Men #19)
* Absorbing Man - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Adam Warlock - both involved in Infinity War
* Alex Power - they join forces in the tunnels of the Mutant Massacre (Power Pack #27) and against Quicksilver and Maximus (X-Factor An. #2) and Pestilence (XF # 25)
* Alicia Masters - X-Men are manipulated into attacking Alicia and Fantastic Four (FaFo #28), they meet at the Richards engagement party (#36) and wedding (An. #3)
* Amanda Sefton - first met for New Years in New York (X-Men #98), X-allies many times since then
* Ancient One - the X-Men hear of the Ancient One in X-Men #33
* Angel - original members of X-Men (#1-94) and X-Factor, and X-Men again (from #375). Nicknames: "Birdman" (X-Men #44), "Flyboy" (#66)
* Anole - residents at the X-Mansion at the same time
* Ant-Man - many team crossovers (since X-Men #9)
* Apocalypse - *Enemy:* major villain of X-Factor (from #6)
* Arcade - *Enemy:* Arcade held the X-Men captured in Murderworld in #123-124
* Armor - student at the X-mansion, X-Men (from Ast X-Men #3.19)
* Artie Maddicks - Artie was adopted by X-Factor (from #3)
* Aurora - their two teams had a big battle over Wolverine in snowy Calgary (X-Men #120-121) and both involved in the "Loki's gift" adventure (X-Men/Alpha Flight #1-2)
* Avalanche - their teams clash at the arrest of Magneto (X-Men#199), over Rusty Collins in Central Park (X-Factor #9) and several times later
* Balder - Shadowcat mentions Balder when they are in Asgard (X-Men An. #9)
* Banshee - clashed in X-Men #28 but later X-Men (from #94-129) and always allies
* Baron von Strucker - the X-Men battle von Strucker's offspring in Paris (#200)
* Beast - founders of X-Men (#1-66) and X-Factor, and in X-Men again (from #375). Nicknames: "My Bestial Buddy" (XM #2), "Ol' Buddy" (#135)
* Beetle - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Bishop - members of X-Men (from #287)
* Black Bolt - they join forces to free Franklin Richards from Maximus in Attilan (X-Factor An. #2)
* Black Knight - they met at the wedding of Wasp and Ant-Man (Avengers #60), and X-Factor battle a set of alien fake Avengers (XF #32)
* Black Panther - they clash in the fortress of Magneto (Avengers #53), later again battle but then join forces against the mind-control of Magneto (#110-111)
* Black Widow - Avengers and X-Men battle but then join forces against the mind-control of Magneto (A #111), later their teams join forces in Onslaught (X-Men #2.55) and meet at X-Mansion in All-New X-men #8
* Blindfold - residing at the X-Mansion at the same time
* Blob - *Enemy:* classic foe of the X-men (from #3)
* Boom-Boom - she was trainee in X-Factor (from #12), and X-Force move into the mansion (from XF #44)
* Bulldozer - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Cable - his son (born in X-Men #201), later they battle Ahab (An. #5), and X-Force move into the mansion (from XF #44), later members of X-Men (from #375)
* Caliban - *Ally*: Caliban becomes trainee in X-Factor after being saved from the Mutant Massacre (Power Pack #27), and also X-Force reside in the mansion (from XF #44) - *Enemy*: adversaries in the Apocalypse Twelve event (X-Men #377-379)
* Cannonball - both have lived in the X-Mansion many times (since X-Men #167), New Mutants also based off X-Factor's "Ship" (NM #76), finally both X-Men (from X-Force #44)
* Captain America - many team crossovers (since X-Men #9)
* Captain Britain - they brief each other by video over the Kings of Pain disaster in Edinburgh (X-Factor An. #6), and their teams join forces against the trolls in England (Excalibur #57-58)
* Carol Danvers - Carol stayed with the X-Men in the period around the original Brood saga (#150-171)
* Celeste Cuckoo - residing at the X-Mansion at the same time, later members of X-Men Extinction team (from All-New X-Men #11)
* Chamber - Cyclops mentions Chamber's mutant abilities to Corsair (X-Men #391), later both are members of X-Men (#398-423)
* Charles Xavier - original members of X-Men (#1-200, also #377-379). Usually always adresses his mentor the professor formally, but broke this when adressing him "Charles" in #156
* Ch'od - first joined forces in the Phoenix saga (X-Men #107-108), and allies since Starjammers stayed with the X-Men in the Bermuda period (#158-161)
* Cobra - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Colleen Wing - they join forces against Moses Magnum in Japan and then become romantically involved (#120-124)
* Colossus - core X-Men (#94-201, again from Ast X-Men #5)
* Corsair - his father whom he first met on the nameless planet in the Phoenix saga (X-Men #107-108)
* Count Nefaria - *Enemy:* Nefaria abducted the X-Men in #22-23 and they battle again in #94-95
* Crystal - they met at the wedding of Wasp and Ant-Man (Avengers #60) and Scott's own wedding (X-Men #2.30) and their teams join forces in Onslaught (X-Men #2.55)
* Daredevil - they meet at the wedding of Reed and Susan Richards (Fantastic Four An. #3) and the wedding of Wasp and Ant-Man (Avengers #60), and Daredevil battles and frees X-Men from the mind-control of Magneto (Avengers #111), later involved in Infinity War
* Dazzler - allied many times since Alison was first discovered (X-Men #130)
* Doctor Doom - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Doctor Druid - X-Factor battle a set of alien fake Avengers (XF #32)
* Doctor Octopus - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Doctor Strange - they meet at the wedding of Reed and Susan Richards (Fantastic Four An. #3), allies several times (since X-Men #33)
* Domino - she was present at his wedding with Jean (X-Men #2.30), they join forces in Israel (#40), and X-Force move into the mansion (from XF #44)
* Dormammu - Jean and Scott use Dormammu's name in an incantation learned from Doctor Strange (X-Men #33)
* Doug Ramsey - both briefly stayed in the X-Mansion (around X-Men #201)
* Drax the Destroyer - both involved in Infinity War
* Dust - residing at the X-Mansion at the same time
* Edwin Jarvis - they met at the wedding of Wasp and Ant-Man (Avengers #60) and when X-Men seek help from the Avengers in X-Men #155
* Electro - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Emma Frost - *Enemy:* iconic foe of the Dark Phoenix years (from X-Men #129) *- Ally:* members of X-Men. They have a psychic affair (New X-Men #136), and lovers
* Enchantress - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3), and they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Executioner - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Firelord - Firelord attacks the X-Men in #105-106
* Foggy Nelson - they meet at the wedding of Reed and Susan Richards (Fantastic Four An. #3), Nelson visited the mansion to read the final will of the professor (X-Men #46)
* Forge - Scott first sees Forge on TV from Dallas (X-Factor #27), later they save Angel from vampires (#58), they join forces against Ahab from the future (X-Factor An. #5), then X-Men members (from U X-Men #280)
* Franklin Richards - they first meet at the X-Mansion in (X-Men An. #5) and against Quicksilver and Maximus (X-Factor An. #2), and they join forces in the tunnels of the Mutant Massacre (Power Pack #27), and to relax in Central Park (X-Factor An. #2) and more
* Frenzy - *Enemy:* Frenzy and Alliance of Evil are major foes of X-Factor (from #4) - *Ally:* Frenzy joins the X-Men in battle against Magneto in Genosha (X-Men #392-393)
* Frigga - Shadowcat mentions Frigga when they are in Asgard (X-Men An. #9)
* Galactus - Scott hears of Galactus from Firelord in X-Men #105, and they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Gambit - they join forces against Ahab and his hounds (X-Men An. #14), and X-Men members (#280-350)
* Gamora - both involved in Infinity War
* Genesis - residing at the X-Mansion at the same time (from All-New X-Men #5)
* Ghost Rider (DK) - they join forces against the Brood in X-Men #2.9
* Gladiator - they fought over Majestrix Lilandra in X-Men #107-108 and over Phoenix in #137 and later
* Glenn Talbot - Major Talbot clashes with the X-Men over Hulk in X-Men #66
* Glob Herman - both residents at the X-Mansion
* Gorgon - they join forces to free Franklin Richards from Maximus in Attilan (X-Factor An. #2)
* Grey Gargoyle - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Guardian - their two teams had a big battle over Wolverine in snowy Calgary (X-Men #120-121), later both are at the X-Mansion when Hudson is studying Wolverine (W #92-95)
* Havok - brother, members of X-Men (from #65-94). Nicknames: "Butthead" and "Bright Boy" (X-Factor #60)
* Hawkeye - they first meet at the wedding of Reed and Susan Richards (Fantastic Four An. #3), many team meetups (e.g. Avengers #53, Secret Wars)
* Heimdall - Shadowcat mentions Heimdall when they are in Asgard (X-Men An. #9)
* Hela - Hela and the X-Men have several confrontations in Asgard (NMSE, X-Men An. #9)
* Hellion - residents at the X-Mansion at the same time
* Henry Gyrich - they briefly meet on Chambers' island in the Florida Keys (X-Men An. #2.2)
* Hepzibah - first joined forces in the Phoenix saga (X-Men #107-108), and allies since Starjammers stayed with the X-Men in the Bermuda period (#158-161)
* Hercules - Cyclops claims to know Hercules in Avengers #53
* High Evolutionary - Armor mentions the Evolutionary in Ast X-Men #29
* Hulk - first hears of Hulk from Iron-Man (Avengers #3), they clashed in X-Men #66, but they are allies on Beyonder's Battleworld planet (first Secret Wars series)
* Human Torch - many team meetups (since Fantastic Four #28)
* Husk - both residing at the X-Mansion (from around X-Men #410)
* Iceman - founders of X-Men (#1-94) and X-Factor, and briefly X-Men again (#377-379)
* Iron Fist - they have worked together (apparently PM&IF #57)
* Iron-Man - many team crossovers (since Tales of Suspense #49)
* J. Jonah Jameson - Storm and Cyclops read Jameson's front page article about X-Men (XM #161), later Emma Frost talks about Jameson (Ast. XM #3.7)
* Jack Power - they join forces in the tunnels of the Mutant Massacre (Power Pack #27) and against Quicksilver and Maximus (X-Factor An. #2) and Pestilence (XF # 25)
* Jean Grey - original X-Men (#1-137) and X-Factor members, later again X-Men. Life partner (from X-Men #53), he proposes (XF #53), spouse (XM #2.30). Nickname: "Red" (X-Men #2.3 and #2.35)
* Jubilee - allies since X-Tinction (U X-Men #272) and as X-Men (from #2.5 - #379 and from #427)
* Juggernaut - *Enemy:* arch enemy (since X-Men #12) - *Ally*: both residing at the X-Mansion (from X-Men #413)
* Julia Carpenter - they are allies on Beyonder's Battleworld planet (first Secret Wars series), but their two teams battle over Rusty Collins in Central Park (X-Factor #9)
* Julie Power - they join forces in the tunnels of the Mutant Massacre (Power Pack #27) and against Quicksilver and Maximus (X-Factor An. #2) and Pestilence (XF # 25)
* Kang - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3), and also on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Karen Page - they meet at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Karma - both briefly lived in the X-Mansion (X-Men #167-168, and around #201)
* Karnak- they join forces to free Franklin Richards from Maximus in Attilan (X-Factor An. #2)
* Karnilla - in Asgard Cyclops hears Karnilla mentioned (X-Men Ann. #9)
* Katie Power - they join forces in the tunnels of the Mutant Massacre (Power Pack #27) and against Quicksilver and Maximus (X-Factor An. #2) and Pestilence (XF # 25)
* Ka-Zar - hesitant allies ever since X-Men #10. Nickname: "Jungle King" (#63)
* Kid Omega - residents at the X-Mansion
* Kingpin - they collide in Hong Kong in X-Men #2.63-2.64
* Klaw - they are on opposite sides on Beyonder's Battleworld planet (first Secret Wars series)
* Leech - Leech is adopted by X-Factor after being saved from the Mutant Massacre (Power Pack #27)
* Lilandra - sworn allies since they first met in the Phoenix saga (X-Men #105) and Brood storyline (from #156)
* Lizard - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Loki - *Enemy:* they clash in the "Loki's gift" adventure in Canada (X-Men/Alpha Flight #1-2) and in Asgard (X-Men An. #9)
* Longshot - Scott first sees longshot on TV from Dallas (X-Factor #27), they join forces during Inferno (X-Men #242-243), and in Mojoverse (#2.10)
* Luke Cage - they have worked together (apparently PM&IF #57)
* Luna Maximoff - they meet in Attilan when Lockjaw brings X-Men there (X-Factor An. #2), and the X-Men work to save Luna in Bloodties (X-Men #2.26)
* Madelyne Pryor - *Ally:* romantic interest since they first met in Alaska (X-Men #168), spouse (#175) until he leaves her (#206) - *Enemy:* they battle during Inferno. Nickname: "Red" (#174-181)
* Mad Thinker - *Enemy:* Mad Thinker and Puppet Master manipulate X-Men and Fantastic Four to fight each other (FaFo #28), and they also take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Magik - meet at wedding of Madelyne and Scott (X-Men #175), both briefly stayed in the X-Mansion (around #201), later members of X-Men Extinction team
* Magma - both briefly stayed in the X-Mansion (around X-Men #201, again around #423)
* Magneto - *Enemy:*the original archenemy of the X-Men - *Ally:* they join forces when Magneto first reforms (#198-199), and against Apocalypse in the Apocalypse Twelve event (X-Men #377), later members of X-Men Extinction team
* Mandarin - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Man-Thing - together they defeat the demon D'Spayre in Florida in X-Men #144
* Marrow - members of X-Men (from #2.70)
* Mastermind - *Enemy:* classic foe of the X-Men (ever since #4)
* Maximus - *Enemy*: X-Men attack Maximus to free Franklin Richards in Attilan (X-Factor An. #2)
* Medusa - they join forces to free Franklin Richards from Maximus in Attilan (X-Factor An. #2)
* Meggan - their teams join forces against the trolls in England (Excalibur #57-58)
* Mercury - residents at the X-Mansion at the same time
* Mindee Cuckoo - residing at the X-Mansion at the same time, later members of X-Men Extinction team (from All-New X-Men #11)
* Mirage - both briefly lived in the X-Mansion (X-Men #167-168, 201), later the New Mutants are briefly based on X-Factor's "Ship" (around NM #76)
* Mister Hyde - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Mister Sinister - *Enemy:* Sinister manipulated Alex' youth, later the pantheon of mutants defeat Sinister after Inferno (X-Factor #39)
* Misty Knight - befriended through Jean Grey (X-Men #102), they join forces against Eric the Red and Moses Magnum during X-Men #105-122
* Moira MacTaggert - always allies since she first came to the X-Men (#96)
* Mole Man - *Enemy:* X-Men battle Mole Man in the Baxter Building (Fantastic Four An. #3) and in the underground realms (X-Men #34)
* Monica Rambeau - they are allies on Beyonder's Battleworld planet (first Secret Wars series)
* Moondragon - both involved in Infinity War
* Multiple Man - they have allied many times on Muir Island (since X-Men #104, X-Factor An. #6) and in X-Cutioner's Song (#295)
* Mystique - their teams clash at the arrest of Magneto (X-Men#199), over Rusty Collins (X-Factor #9) and over Nathan Christopher (#31), but they join forces in the Muir Island Saga (X-Factor #69)
* Nick Fury - they meet at the wedding of Reed and Susan Richards (Fantastic Four An. #3), often allies (since X-Men #2.2-3)
* Nightcrawler - core X-Men (#94-201)
* Northstar - both involved in the big battle in snowy Calgary (X-Men #120-121), in the "Loki's gift" adventure (X-Men/Alpha Flight #1-2), and the battle against Magneto in Genosha (X-Men #392-393), finally members of X-Men (from #414)
* Nova - Doctor Doom talks of Galactus being found by Nova (Secret Wars #11)
* Nova (Richard Rider) - both involved in Infinity War
* Odin - the X-Men discuss Odin when in Asgard (Ann. #9)
* Oya - residing at the X-Mansion at the same time (from All-New X-Men #5)
* Phoebe Cuckoo - residing at the X-Mansion at the same time, later members of X-Men Extinction team (from All-New X-Men #11)
* Piledriver - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Pixie - residents at the X-Mansion at the same time
* Polaris - allies ever since X-Men #49, members of X-Men (from #60-94, also #377-379), and "sister-in-law"
* Psylocke - Scott first sees her on TV from Dallas (X-Factor #27), they join forces during Inferno (X-Men #242-243), later X-Men members (from #280)
* Puck - they are both involved in the "Loki's gift" adventure in Canada (X-Men/Alpha Flight #1-2)
* Puppet Master - *Enemy:* Mad Thinker and Puppet Master manipulate X-Men and Fantastic Four to fight each other (FaFo #28), later they battle again (XM #27)
* Pyro - their teams clash at the arrest of Magneto (X-Men#199), over Rusty Collins in Central Park (X-Factor #9) and several times later
* Quicksilver - many times both ally and foe since the first Brotherhood vs X-Men (X-Men #4)
* Rachel Summers - his daughter from the future, whom he first meets when both are involved in the "Loki's gift" adventure in Canada (X-Men/Alpha Flight #1-2), briefly X-Men (#199-201)
* Raza - first joined forces in the Phoenix saga (X-Men #107-108), and allies since Starjammers stayed with the X-Men in the Bermuda period (#158-161)
* Reed Richards - many team meetups (since Fantastic Four #28)
* Rick Jones - they meet at the Richards engagement party (Fantastic Four #36)
* Rictor - he was trainee in X-Factor (from XF #17)
* Rockslide - residents at the X-Mansion at the same time
* Rogue - they were both at the wedding of Wolverine and Mariko (X-Men #173), allies in Canada (X-Men/Alpha Flight #1-2) and Inferno (X-Men #242-243), briefly X-Men (from #199-201)
* Roma - he hears Madelyne Pryor talk about Roma during Inferno (X-Factor #38)
* Sabretooth - *Enemy:* Cyclops first clashes with Sabretooth in the Alley (X-Factor #10), X-Men hold him captured at the mansion (X-Men #2.33-38)
* Sasquatch - their two teams had a big battle over Wolverine in snowy Calgary (X-Men #120-121) and both involved in the "Loki's gift" adventure (X-Men/Alpha Flight #1-2)
* Sauron - *Enemy:* classic foe ever since X-Men #60 - *Ally:* they make peace in Savage Land (X-Men #115-116), and Scott is there when Sauron is cured (Marvel Fanfare #4)
* Scarlet Witch - many meetings both ally and foe since the first Brotherhood vs X-Men (X-Men #4)
* Sebastian Shaw - *Enemy:* iconic foe of the Dark Phoenix years (X-Men #129)
* Shadowcat - core X-Men (#131-201, again from Ast. #3.1)
* Shaman - their two teams had a big battle over Wolverine in snowy Calgary (X-Men #120-121), both are involved in the "Loki's gift" adventure (X-Men/Alpha Flight #1-2), later Shaman meets with Jean and Scott in Anchorage in (X-Men #359)
* Shang-Chi - they join forces in Hong Kong (X-Men #2.62-2.63)
* Sharon Ventura - they meet when they defeat Ahab from the future together (X.Factor An. #5)
* Shatterstar - their two teams clash in X-Cutioner's Song (U X-Men #295), but X-Force also stay with the X-Men (X-Force #18-19 and from #44)
* She-Hulk - they are allies on Beyonder's Battleworld planet (first Secret Wars series)
* Silver Surfer - they join forces against the Inciters in X-Men UL #13
* Siryn - they join forces against Proteus (X-Factor An. #6), battle on Muir Island (U X-Men #280) and X-Cutioner's Song (#295), but X-Force also briefly stay with the X-Men (X-Force #18-19)
* Skin - Scott sees the corpse of Skin at the Xavier Institute when he has been assaulted (X-Men #423)
* Snowbird - their two teams had a big battle over Wolverine in snowy Calgary (X-Men #120-121) and both involved in the "Loki's gift" adventure (X-Men/Alpha Flight #1-2)
* Spider-Man - X-Men first heard of Spidey (An. SM #1), they meet at the wedding of Reed and Susan Richards (Fantastic Four An. #3), sometimes allies after one clash (X-Men #35). Nickname: "Web-slinger" (XM #35)
* Spider-Woman (JD) - their two teams meet at the X-Mansion in All-New X-men #8
* Spiral - their teams clash at the arrest of Magneto (X-Men#199), and they meet briefly in Central Park (X-Factor #8) and again in Dallas over the fate of Nathan Christopher (#31)
* Storm - core X-Men (#94-201). Cyclops first leader, then Storm won battle for supremacy (#201), eventually Cyclops boss again (#2.54)
* Strong Guy - Guido joins forces with the X-Men several times (U X-Men #278-295)
* Sub-Mariner - Namor meets the X-Men on Magneto's island (XM #6) and meets X-Factor on "Ship" after the Kraken has been defeated (New Mutants #76)
* Sunfire - Sunfire battled the silver age X-Men in Manhattan (#64), but have since been an ally (GSX, #118-119)
* Sunspot - both have lived periodically in the X-Mansion (since X-Men #167), New Mutants also based off X-Factor's "Ship" (NM #76), and several collaborations
* Super-Skrull - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Surge - residents at the X-Mansion at the same time
* Susan Richards - many team meetups (since Fantastic Four #28)
* Talisman - they are both involved in the "Loki's gift" adventure in Canada (X-Men/Alpha Flight #1-2)
* Tessa - *Enemy:* she and Hellfire Club held the X-Men captured (#132-133)
* The Thing - many team meetups (since Fantastic Four #28)
* The Watcher - in Attilan, Karnak mentions the Watcher (X-Factor An. #2), later Lilandra relays the message of The Watchers to the X-Men (#2.40)
* Thor - many team crossovers (since X-Men #9)
* Thunderball - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* Tigra - they join forces against Deathbird in X-Men #155
* Titania - they are on opposite sides on Beyonder's Battleworld planet (first Secret Wars series)
* Toad - *Enemy:* classic foe of the X-Men (from #4)
* Trish Tilby - they met when she covered X-Factor (from #7) and at the mansion in X-Men #2.70-2.71
* Triton - they join forces to free Franklin Richards from Maximus in Attilan (X-Factor An. #2)
* Valerie Cooper - he clashes with her group at the arrest of Magneto (X-Men#199), later Valerie sends X-Factor on special mission to Genosha (XF #60), and they join forces in X-Cutioner's Song (XM #295)
* Vanisher - *Enemy:* classic foe of the X-men (from #2)
* Vindicator - they are both involved in the "Loki's gift" adventure in Canada (X-Men/Alpha Flight #1-2), later both are at the X-Mansion when Hudson is studying Wolverine (W #92-95)
* Viper - *Enemy:* must have heard of Viper's attack when attending Wolverine's wedding (X-Men #173)
* Vision - they meet at the wedding of Wasp and Ant-Man (Avengers #60),- Avengers and X-Men battle but then join forces against the mind-control of Magneto (#110-111), and join forces in Onslaught (X-Men #2.55)
* Vulture - Spider-Man mentions The Vulture in X-Men #35
* Warlock - both briefly stayed in the X-Mansion (around X-Men #201), later the New Mutants are based on X-Factor's "Ship" (from NM #76)
* War Machine - they are allies on Beyonder's Battleworld planet (first Secret Wars series)
* Warpath - their two teams clash in X-Cutioner's Song (U X-Men #295), but X-Force also live with the X-Men (X-Force #18-19 and from #44)
* Wasp - many team crossovers (since X-Men #9)
* Whirlwind - *Enemy*: they take part in the big battle at the wedding of Reed and Susan Richards (Fantastic Four An. #3)
* Wolfsbane - both briefly lived in the X-Mansion (X-Men #167-168, 201), later the New Mutants are based on X-Factor's "Ship" (from NM #76)
* Wolverine - core X-Men (#94-201 and later). Nickname: "Short-stuff" (#127, 150)
* Wrecker - they are on opposite teams on Beyonder's Battleworld planet (first Secret Wars series)
* X-Man - the X-Men teams become aware of X-Man during Onslaught (Onslaught: X-Men), and they travel together in Alaska after Age of Apocalypse (X-Man #54), briefly members of X-Men (#375-379)