The sum six phallus ofThe Avengersbecame pop culture icons in 2012 , and each has a different , albeit heartwarming friendly relationship with the actor who aid kick off the MCU : Robert Downey Jr. compare tothe MCU ’s ongoing Phase 4of blockbuster superhero movies , Iron Manwas small , quaint , and character - driven affair , with much of its dialogue improvised by Robert Downey Jr and his co - stars . YetIron Manhelped turn Marvel Studios ’ challenging Bob Hope of a shared Marvel movie universe into a reality that was satisfy byThe Avengersfour long time later . Throughout the first Phase of the MCU , the enfranchisement gradually build up its roster until the all - star squad form in 2012 , with the six role player ’ palpable chemical science being one ofThe Avengers ' strongest element .

The Avengerswas an overnight maven , serving as both a payoff to five other movies and proof that a comic book - style share continuity can ferment on film . The Avengers’success not only led to two more phases ofMCU films ( including three moreAvengersmovies ) , but it also made the six founding team fellow member household names . of course , given their phenomenal onscreen chemical science , it ’s unsurprising that all six cast penis seem to be sound acquaintance off - set , put up words of boost , mild pranks , and societal culture medium shout - outs to each other - proving that their chemistry is as unassailable off - camera as it is in the MCU celluloid .

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Chris Evans

Jeremy Renner

Robert Downey Jr also enjoys a friendship withAvengersco - star Jeremy Renner . While promoting the Disney+ seriesHawkeye , Renner spoke of his friendly relationship with Downey Jr , describing him as being as much a wise man as a friend . Just as Robert Downey Jr help initiate the MCU itself inIron mankind , he helped easeJeremy Renner into the superhero role of Hawkeyefor multiple MCU phase angle , which helped plant the crew - pleasing chemical science of the original sixAvengersmembers .

Scarlett Johansson

Robert Downey Jr and Scarlett Johansson have had perhaps the longest onscreen chronicle in the MCU since the latter debuted inIron Man 2 , base the canon history between Iron Man and Black Widow . The two were swell friends off of the set , as were the sleep of the launch sixAvengersmembers , with Downey Jr notably send Johansson a congratulatory video recording content when she received her American Cinematheque Award . In a uproariously profane message , which find rather alike to his onscreen persona of Tony Stark , Downey Jr sardonically poke play at hisAvengersco - genius ( and himself ) in a way that only a close friend could .

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Chris Hemsworth

Whilethe originalAvengersteamactors all became friends by the meter the 2012 film run into house , Robert Downey Jr and Chris Hemsworth have off to a strange offset . According to Jeremy Renner , Downey Jr was taken aback by Hemsworth ’s charisma and jokingly paint a picture that they break his knees as a remedy . Downey Jr is , of row , lie with for have a risqué common sense of sense of humour , and the two shortly became champion , despite Downey Jr ’s jokes .

Mark Ruffalo

Robert Downey Jr and Mark Ruffalo are known for being particularly close , body forth their brainiac   friendly relationship both onscreen and in reality . As with Chris Evans and Jeremy Renner , Robert Downey Jr acquire on something of a mentor use for Mark Ruffalo , convincing him to take the role ofBruce Banner when Ruffalowas unsure about contain the part in 2011 . The two were protagonist well before they becameAvengersco - stars , and Ruffalo once described Downey Jr as feel like an old sibling to him .

Robert Downey Jr’s Other Avengers Co-Stars

AsThe Avengers’roster shift in the MCU and he began bring alongside other superhero team , Robert Downey Jr continued to form friendships with his raw co - star . Benedict Cumberbatch co - star inAvengers : Infinity Waralongside Robert Downey Jr , with Cumberbatch noting how much he enjoyed working alongside Downey Jr. Robert Downey Jr also became friend with Chris Pratt while puzzle out onInfinity Warand defended Pratt when he was harassed on societal media .

However , Robert Downey Jr ’s most famousMCU friendly relationship is with Tom Holland ; with   Downey Jr helping Holland get his calling - defining role as the MCU ’s Spider - Man while working onCaptain America : Civil War . Just as Tony Stark helped found The Avengers and subsequently rent the role of mentor to Peter Parker , Robert Downey Jr likewise mentored Tom Holland . Holland has spoken of his positive experience work with Downey Jr during his audition and first vista as Peter Parker , noting that some of the negotiation was improvise , leading to the scene ’s natural , jolly feel . Even after Robert Downey Jr ’s MCU land tenure stop inEndgame , he and Holland remain to show their friendship on societal culture medium and even co - star in the non - MCU filmDolittle . As with the original members ofThe Avengers , Robert Downey Jr naturally falls into the theatrical role of both mentor and friend to his co - stars .

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