Vision

* Adam Warlock - both are involved in Infinity War
* Angel - they met at the wedding of Wasp and Ant-Man (Avengers #60), and they join forces against the Dire Wraiths (ROM #65-66) and in Onslaught (X-Men #2.55)
* Annihilus - *Enemy:* they battle in the Baxter Building (Avengers #89). Nickname: "Monster" (A #89)
* Ant-Man - members of Avengers (A #58-91)
* Ares - *Enemy*: they battle when Ares goes to war on three worlds (A #98-100)
* Attuma - Tyrak mentions Attuma during a harbour battle (Avengers #172)
* Aurora - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Avalanche - *Enemy:* the Brotherhood waged war on the Avengers (Annual #10)
* Balder - the group of banished Agardians temporarily stay in Avengers Mansion (Thor #204-213)
* Baron Zemo *-* Iron-Man tells the tale of Wonder Man, Zemo, Executioner and Enchantress (Avengers #58)
* Beast - first met at the wedding of Wasp and Ant-Man (Avengers #60), members of Avengers
* Beta Ray Bill - briefly members of Avengers (i.e. ROM #66)
* Betty Ross - they meet when Avengers try to stop Hulk from disrupting the San Andreas fault (Hulk #128)
* Bishop - their teams join forces in Onslaught (X-Men #2.55)
* Black Bolt - Avengers sees Black Bolt on TV from San Francisco (Amazing Adventures #8), and the Inhumans receive help from the Avengers (A #95-96), later Inhumans liberate Avengers and Jarvis from Kang in the 23rd century (MTU #11)
* Black Knight - they join forces in Avengers #61 and official members together from #71
* Black Panther - members of Avengers (from #58)
* Black Widow - allies through the Avengers (A #63-64) and later members (#111-112)
* Blob - *Enemy:* the Brotherhood waged war on the Avengers (Annual #10)
* Box - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Cannonball - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9), but their teams join forces in Onslaught (X-Men #2.55)
* Captain America - members of Avengers (on-off from #58)
* Captain Marvel - Rick Jones tells the Avengers about Marvell (A #72), they join forces against Ronan and Skrulls (#90-93), and Mar-Vell helps Avengers defeat the Hydra cell of Space Phantom (#108)
* Carol Danvers - they collaborate many times through Avengers (since A #90)
* Charles Xavier - Avengers and X-Men battle but then join forces against the mind-control of Magneto (A #110-111), later Charles is the possessed opponent for Avengers in Onslaught (e.g. X-Men #2.55)
* Cloak - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Collector - *Enemy*: the Collector abducts Vision (Avengers #172)
* Colossus - they are among the heroes that defeat the Dire Wraiths (ROM #65-66), and in the final battle against The Beyonder (Secret Wars II.9)
* Contessa Valentina - with SHIELD she has on occasion joined forced with the Avengers (e.g. #67)
* Crystal - they talk on video screen from the Refuge (Avengers #110), both members of Avengers
* Cyclops - 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 (A #110-111), and their teams join forces in Onslaught (X-Men #2.55)
* Dagger - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Daredevil - they met a few times through Avengers (e.g. A #60, 82), also during the trial of Hulk (Hulk #153), and join forces against Magneto (A #111)
* Doctor Doom - Vision attends a Halloween party with a Doctor Doom cosplayer (Avengers #83), later they must ally in Marvel Team-Up #42-43
* Doctor Druid - he is told about Vision in Avengers #278
* Doctor Strange - they join forces against Surtur and Ymir (Avengers #61)
* Doug Ramsey - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9)
* Dragon Man - Goliath talks of Dragon Man being in his suburban house (Avengers #58)
* Drax the Destroyer - both are involved in Infinity War
* Dum Dum Dugan - they meet at the funeral of Captain America (CA #113), and SHIELD has on occasion joined forced with the Avengers (A #67, 72)
* Edwin Jarvis - butler of the Avengers (since A #58)
* Enchantress *- Enemy:* Iron-Man tells the tale of Wonder Man, Zemo, Executioner and Enchantress (Avengers #58), soon the Avengers battle against her several times (#83-100)
* Executioner *-* Iron-Man tells the tale of Wonder Man, Zemo, Executioner and Enchantress (Avengers #58)
* Falcon - they meet at a Park Avenue Avengers assembly (A #88), and also meet at Avengers Mansion (Captain America #154)
* Fandral - the group of banished Agardians temporarily stay in Avengers Mansion (Thor #204-211)
* Firestar - both members of Avengers
* Franklin Richards - the superhero teams seek to liberate Franklin in Onslaught
* Gabe Jones - they meet at the funeral of Captain America (CA #113), and SHIELD has on occasion joined forced with the Avengers (A #67, 72)
* Galactus - Thor mentions Galactus (Avengers #124)
* Gambit - their teams join forces in Onslaught (X-Men #2.55)
* Gamora - both are involved in Infinity War
* Gargoyle - they are among the heroes that defeat the Dire Wraiths (ROM #65-66)
* General Ross - they join forces to stop Hulk from disrupting the San Andreas fault (Hulk #128), and both are at the trial of Hulk (Hulk #153)
* Glenn Talbot - they join forces to stop Hulk from disrupting the San Andreas fault (Hulk #128)
* Gorgon - Inhumans liberate Avengers and Jarvis from Kang in the 23rd century (MTU #11)
* Harry Osborn - Vision spends a night at Harry and Peter's place although did not meet Harry (MTU #5)
* Havok - both are involved in Infinity War
* Hawkeye - members of Avengers (from A #58). Nicknames: "Archer" (A #57-101), "Bowman" (A #63, Daredevil #99). Nickname (for Goliath): "Giant" (A #65-92)
* Henry Gyrich - Gyrich is national security liaison for the Avengers (until #172)
* Hercules - they meet as Hercules visits the Avengers (Ka-Zar #1), allies to defeat Ares (A #99-100), later both members of Avengers
* Hildegarde - the group of banished Agardians temporarily stay in Avengers Mansion (Thor #204-211)
* Hogun - the group of banished Agardians temporarily stay in Avengers Mansion (Thor #204-211)
* Hulk - Hank Pym talks of Hulk (Avengers #58), they clash as the Avengers try to stop Hulk from disrupting the San Andreas fault (Hulk #128), but join forces to defeat Ares in the war of three worlds (A#100), Avengers go to support Hulk in his trial (Hulk #153) and are allies after. Nickname: "Monster" (Hulk #128)
* Human Torch - they met at the wedding of Wasp and Ant-Man (Avengers #60), and their teams join forces against The Beyonder (Secret Wars II.9), and in Onslaught (X-Men #2.55)
* Human Torch (Android) - they do battle in a 1941 time pocket in Avengers #71
* Iceman - 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 (A #110-111), and join forces against the Dire Wraiths (ROM #65-66) and in Onslaught (X-Men #2.55)
* Immortus - Spider-Woman tells the Avengers of Immortus in Avengers Annual #10
* Iron Fist - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Iron-Man - members of Avengers (on-off from #58)
* Jane Foster - The Grim Reaper tells Vision about Loki once trapping Jane (Avengers #107)
* Jasper Sitwell - they meet at the funeral of Captain America (CA #113)
* Jean Grey - 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)
* Jimmy Woo - they liaise as SHIELD and Avengers in the hunt for Scorpio (A #72)
* Julia Carpenter - join forces as they are in Avengers / WCA (e.g. in Bloodties)
* Kang - *Enemy:* arch enemy of Avengers (e.g. #69)
* Karma - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9)
* Karnak - Inhumans liberate Avengers and Jarvis from Kang in the 23rd century (MTU #11)
* Ka-Zar - Avengers travel to Savage Land and talk of Ka-Zar (A #105)
* Klaw *- Enemy:* Black Panther mentions Klaw (Avengers #62), battle between Masters Of Evil and the Avengers (A #83)
* Living Laser - *Enemy:* they battle as Lethal Legion capture the Avengers (A #79)
* Loki - The Grim Reaper tells Vision about Loki once trapping Jane Foster (Avengers #107)
* Luke Cage - Avengers discuss hypothetically recruiting Cage (Daredevil #99), later they take part in the final battle against The Beyonder (Secret Wars II.9)
* Luna Maximoff - both are residents of Avengers Mansion
* Machine Man - they clash at the Avengers Mansion (X-51 #4)
* Mad Thinker - *Enemy:* classic foe of the Avengers (from #63)
* Magik - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9)
* Magma - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9)
* Magneto - *Enemy*: Avengers talk of Magneto (A #105), and they battle in Westchester after Magneto has captured the X-Men (Avengers #110-111) - *Ally*: they take part in the final battle against The Beyonder (Secret Wars II.9)
* Mantis - members of Avengers
* Marvel Boy - both members of Avengers
* Maximus - *Enemy:* they battle on Attilan (Avengers #95)
* Merlyn - Black Knight tells the Avengers about Enchantress and how Merlyn forged the Ebony Blade (A #100)
* Mirage - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9)
* Mockingbird - they are among the heroes that defeat the Dire Wraiths (ROM #65-66), and in the final battle against The Beyonder (Secret Wars II.9)
* Monica Rambeau - they are among the heroes that defeat the Dire Wraiths (ROM #65-66), and in the final battle against The Beyonder (Secret Wars II.9)
* Moondragon - they are among the heroes that defeat the Dire Wraiths (ROM #65-66), and also both are involved in Infinity War
* Mystique - *Enemy:* the Brotherhood waged war on the Avengers (Annual #10)
* Nick Fury often allies through Avengers (since A #60)
* Nightcrawler - they are among the heroes that defeat the Dire Wraiths (ROM #65-66), and in the final battle against The Beyonder (Secret Wars II.9)
* Nighthawk - *Enemy*: remaining Avengers observe the battles with Squadron Sinister from afar (A #70)
* Northstar - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Nova (Richard Rider) - Captain America mentions Nova took Avengers' Quinjet (New Warriors #26), and both are involved in Infinity War
* Odin - Enchantress and Thor mention Odin (Avengers #83, 85)
* Polaris - both are involved in Infinity War
* Power Man - *Enemy:*as part of Lethal Legion he attacked the Avengers (#79)
* Psylocke - their teams join forces in Onslaught (X-Men #2.55)
* Puck - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Puppet Master - *Enemy:*foe of the Avengers ( #63-64), and also harms and battles Vision over the Monstroid (MTU #5)
* Pyro - *Enemy:* the Brotherhood waged war on the Avengers (Annual #10)
* Quicksilver - members of Avengers (A #75-104)
* Rachel Summers - Rachel summons all the heroes to finally end the Beyonder (Secret Wars II.9)
* Radioactive Man *- Enemy:* battle between MasterOE and the Avengers (#83)
* Rage - Rage has visited the Avengers (New Warriors #26)
* Red Skull - *Enemy*: The Avengers get manipulated to think they are fighting against Red Skull (Captain America #116), also attend a Halloween party with a Red Skull cosplayer (A #83)
* Reed Richards - they met at the wedding of Wasp and Ant-Man (Avengers #60), and many crossovers follow over the years (e.g. A #92, FF #263)
* Rick Jones - Rick and Captain America free the Avengers after they had been gassed by Hydra (CA #113), and they join forces again later (e.g. A #72 and 89), and defeating the Dire Wraiths (ROM #65-66). Nickname: "Young Friend" (A #89)
* Rogue - *Enemy:* Rogue nearly slaughtered all the Avengers in Annual #10 - *Ally:* - join forces against the Dire Wraiths (ROM #65-66) and The Beyonder (Secret Wars II.9), and in Onslaught (X-Men #2.55)
* Ronan *- Enemy:* they battle for Earth in Avengers #90-91
* Sasquatch - both are involved in Infinity War
* Scarlet Witch - members of Avengers (from #75), romantic feelings (from #91), becoming a couple (from #108), spouse. Nickname: "My Love" (A #172)
* Sersi - both members of Avengers
* Shadowcat - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Shaman - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Sharon Carter - they meet at the funeral of Captain America (CA #113) and another funeral (CA #3.46)
* She-Hulk - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Sif - the group of banished Agardians temporarily stay in Avengers Mansion (Thor #204-210), and they also travel to the Savage Land together (A #105)
* Silver Surfer - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Snowbird - they take part in the final battle against The Beyonder (Secret Wars II.9)
* Speed Demon - *Enemy*: remaining Avengers observe the battles with Squadron Sinister from afar (A #70)
* Spider-Man - they met at the wedding of Wasp and Ant-Man (Avengers #60), and team up when Vision is being harmed by Puppet Master (MTU #5) and many times after that
* Spider-Woman (JD) - they join forces against the Brotherhood in Avengers Annual #10
* Starfox - they are among the heroes that defeat the Dire Wraiths (ROM #65-66)
* Storm - both are involved in Infinity War
* Strong Guy - both are involved in Infinity War
* Sub-Mariner - they have a staged battle in a 1941 time pocket (Avengers #71), but join forces in the final battle against The Beyonder (Secret Wars II.9)
* Super-Skrull - Rick Jones tells the Avengers of Mar-Vell and Super-Skrull (Avengers #90)
* Supreme Intelligence - Rick Jones tells the Avengers of the Supreme as he knows it from Mar-Vell (Av #90), and they meet on Hala as allies (#97)
* Susan Richards - they met at the wedding of Wasp and Ant-Man (Avengers #60), and their teams join forces against The Beyonder (Secret Wars II.9) and in Onslaught (X-Men #2.55)
* Swordsman - *Enemy:* villain for the Avengers (e.g. #65, 79) - *Ally*: they join forces against Ares and his war on three worlds (A #100), members of Avengers
* Talisman - they take part in the final battle against The Beyonder (Secret Wars II.9)
* The Thing - they first meet at the wedding of Wasp and Ant-Man (Avengers #60), they meet in court (A #92), and their teams join forces in the final battle against The Beyonder (Secret Wars II.9) and later
* The Watcher - Watcher confides with Avengers after their battles with Leonard Tippit (#101)
* Thor - members of Avengers (on-off from #58)
* Tigra - they are among the heroes that defeat the Dire Wraiths (ROM #65-66), and in the final battle against The Beyonder (Secret Wars II.9)
* Toad - Quicksilver tells him about Toad in Avengers #75
* Triathlon - members of Avengers
* Triton - Triton and the Inhumans get help from the Avengers (#95-96), later Inhumans liberate Avengers and Jarvis from Kang in the 23rd century (MTU #11)
* Two-Gun Kid - the Avengers discuss Two-Gun Kid (A #172)
* U. S. Agent - join forces as they are in Avengers / WCA (e.g. in Bloodties)
* Valkyrie - Vision battles Enchantress posing as Valkyrie in Avengers #83, later they are among the heroes that defeat the Dire Wraiths (ROM #65-66)
* Viper - *Enemy*: Madame Hydra attacks and gasses the entire funeral party for Captain America (CA #113)
* Volstagg - the group of banished Asgardians temporarily stay in Avengers Mansion (Thor #204-213)
* Warlock - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9)
* War Machine - they are among the heroes that defeat the Dire Wraiths (ROM #65-66), and (prior?) join forces as they are in Avengers / WCA (e.g. in Bloodties)
* Wasp - members of Avengers (A #58-91)
* Whirlwind *- Enemy:* battle between MasterOE and the Avengers (#83)
* Whizzer - they clash at Avengers Mansion (#153)
* Wolfsbane - New Mutants attack all assembled heroes after becoming Beyonder's slaves (Secret Wars II.9)
* Wolverine - they join forces to defeat the Dire Wraiths (ROM #65-66), and in the final battle against The Beyonder (Secret Wars II.9), but clash at the UN when Logan is possessed by Aria (W #134)
* Wonder Man - Vision was created from Wonder Man's brain patterns (mentioned in Avengers #102), the Grim Reaper offers Vision Wonder to overtake WM's body (#102-103) also both in Avengers (from #156) and West Coast Avengers together
* X-Man - X-Man meets with the Avengers to warn them about Onslaught (Onslaught: X-Men)
* Zeus - Hercules briefly mentions Zeus (ROM #66)