* FakeRussian: Zlatko Buric (Croatian/Danish) as Yuri Karpov, Johann Urb (Estonian-American) as Sasha and Beatrice Rosen (French-American) as Tamara. Also, Zinaid Memisevic (Bosnian) as Sergey Karpenko (Russian president). His interpreter, played by Igor Morozov, is the ''only'' "true" Russian in the movie.
* HeyItsThatGuy:
** [[Film/BetterOffDead Lane Myer]] upgraded from speeding in a station wagon to stunt driving in a limo. The again, [[Film/{{Identity}} this isn't the first time John Cusack was a limo driver.]]
** Speaking of which, the last time John Cusack and Amanda Peet were last seen together, [[Film/{{Identity}} he was said limo driver and she was a prostitute.]]
** Woody Harrelson is no stranger when it comes to dealing with end-of-the-world apocalypses. [[Film/{{Zombieland}} Unlike this one, he actually survives the last one.]]
** [[Series/StarTrekEnterprise Dr.Phlox]] as a scientist.
** [[LoveActually Chiwetel]] [[Film/ChildrenOfMen Ejiofor]], probably best known ''here'' as [[Film/{{Serenity}} The Operative]] or [[TwelveYearsASlave Solomon Northup]].
** [[MissionImpossible Thandie]] [[{{ER}} Newton]]
** George Segal as Tony, whose been in so many things, [[http://www.imdb.com/name/nm0001719/ just check out his IMDB page]].
** Harry, character and voice actor [[http://www.imdb.com/name/nm0542558/ Blu Mankuma]]
** [[Film/LethalWeapon Det. Sgt. Murtaugh]] as the President.
** Mr. Lau and the Russian Prima Ballerina from ''Film/TheDarkKnight''. The former is down on his luck and makes his living as a construction worker, the latter became the oligarch's girlfriend.
** [[Film/{{Watchmen}} Hollis Mason]] as the Captain of Ark 04.
** Dean Marshall, familiar to ''Series/StargateUniverse'' fans, is the communications office on Ark 04
** [[{{Supernatural}} Kevin Tran]] is a Tibetan monk.
** Noah would eventually spend a summer [[Film/TheWayWayBack working in a water park]].
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