* ActorAllusion: Jeremy Renner's secret agent credentials include working with [[{{Film/TheAvengers}} SHIELD]] and [[{{Film/MissionImpossible}} the IMF]].
* FakeAmerican: Brian Cox (Ward Abbot) is Scottish.
* FakeRussian : Russian FSB agent Kirill is portrayed by New Zealand actor Karl Urban.
* HeyItsThatGuy: Aside from being Creator/MattDamon's most famous role, Nicky is Julia Stiles, the Professor is Clive Owen, Kirill is [[Film/StarTrek Bones]] & [[Film/TheLordOfTheRings Éomer]], Kim is [[Film/MissionImpossible Ethan Hunt's fiance]] and Marie is [[Film/RunLolaRun Lola]].
** [[TheShield Walton]] [[Series/{{Justified}} Goggins]] has a bit role in the first as one of the members working at Treadstone HQ.
** [[Creator/JeremyRenner Hawk]][[{{Hawkeye}} eye]] is Aaron Cross.
** Albert Finney, AKA Daddy Oliver Warbucks from Annie 1982, as Hirsch in ''Ultimatum''.
** [[Film/TheLordOfTheRings Celeborn]] is Jarda.
** [[Film/{{Gladiator}} Quintus]] is Marshall.
* SleeperHit: The first film. It had tested horribly and Universal delayed it for a year to do reshoots. When it opened, it was expected to die a quick death against ''Film/ScoobyDoo'' and ''{{Windtalkers}}''. However, reviews and word-of-mouth turned out to be quite positive and it managed to gross over $100 million at the box office.
* StarMakingRole: Creator/MattDamon has mentioned that despite getting wildly critical acclaim for previous movies, it wasn't until he proved to have Box Office clout that film offers really started to show up.
* WhatCouldHaveBeen: Creator/BradPitt turned down the role of Jason Bourne.
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