比尔·普尔曼BillPullman....PresidentThomasJ.Whitmore

威尔·史密斯WillSmith....CaptainSteven\'Steve\'Hiller

杰夫·高布伦JeffGoldblum....DavidLevinson

玛格丽特·柯林MargaretColin....ConstanceSpano

薇薇卡·福克斯VivicaA.Fox....JasmineDubrow

兰迪·奎德RandyQuaid....RussellCasse

罗伯特·劳吉亚RobertLoggia....GeneralWilliamGrey

亚当·鲍德温AdamBaldwin....MajorMitchell

詹姆斯·杜瓦尔JamesDuval....MiguelCasse

杰赛普·安德鲁斯GiuseppeAndrews....TroyCasse

小哈里·康尼克HarryConnickJr.....CaptainJimmyWilder

勒兰德·奥瑟LelandOrser....Tech/MedicalAssistant#1

汤姆·巴瑞ThomBarry....SETITechnician#2

罗伯特·派恩RobertPine....ChiefofStaffGlennParness

小理察·斯贝特RichardSpeightJr.....Ed

安德鲁·凯加AndrewKeegan....OlderBoy

弗兰克·维尔克FrankWelker....SpecialVocalEffects(voice)

玛丽·麦克唐纳MaryMcDonnell....FirstLadyMarilynWhitmore

JuddHirsch....JuliusLevinson

詹姆斯·瑞布霍恩JamesRebhorn....AlbertNimzicki

哈维·费斯特恩HarveyFierstein....MartyGilbert

BrentSpiner....Dr.BrackishOkun

LisaJakub....AliciaCasse

RossBagley....DylanDubrow

BillSmitrovich....Lt.ColonelWatson

梅·惠特曼MaeWhitman....PatriciaWhitmore

绮尔斯腾·瓦伦KierstenWarren....Tiffany

JohnStorey....Dr.Isaacs

FrankNovak....Teddy

DevonGummersall....Philip

MirronE.Willis....Aide

RossLacy....Aide

DavidPressman....Alex,AidetoPresidentWhitmore

VivianPalermo....Tech/MedicalAssistant#2

RaphaelSbarge....Commander/Tech

BobbyHosea....MajorDanowitz

DanLauria....CommandingOfficer

SteveGiannelli....RadarTech

EricPaskel....RadarTech

CarlosLacamara....RadarOperator(asCarlosLaCamara)

JohnBennettPerry....SecretServiceAgent

TroyWillis....SecretServiceAgent

TimKelleher....Technician

WayneWilderson....Area51Technician

JayAcovone....Area51Guard

JamesWong....SETITechnician#1

JanaMarieHupp....SETITechnician#3

MattPashkow....Officer#2

MarisaJohnston....Co-Worker#2(asMarisaMorell)

MichaelWinther....Co-Worker#3

DexterWarren....Co-Worker#4

PaulLeClair....Co-Worker#5

MichaelVacca....LieutenantPeterson(asCapt.Michael\'Chewy\'Vacca)

DavidChanel....SecretServiceAgent

JohnCapodice....Mario

GregCollins....MilitaryAide

DerekWebster....SkyCranePilot

MarkFite....Pilot

EricNealNewman....Pilot

LevaniOutchaneichvili....RussianPilot(asLevani)

KristofKonrad....RussianPilot

KevinSifuentes....TankCommander

ElstonRidgle....Soldier

RandyOglesby....MikeDodge

JackMoore....StoneyJackson

BarryDelSherman....StreetPreacher

LymanWard....SecretServiceAgent

AnthonyCrivello....Lincoln

BarbaraBeck....MonicaSoloway

JoeFowler....Reporter

AndrewWarne....Reporter

SharonTay....Reporter

PeterJ.Lucas....RussianReporter(asPeterJozefLucas)

YelenaDanova....RussianNewscaster

JohnnyKim....KoreanNewscaster(asDerekKim)

VanessaJ.Wells....Newscaster

JessikaCardinahl....GermanVideoNewscaster(scenesdeleted)

GaryW.Cruz....VideoNewscaster

RonPitts....VideoNewscaster

WendyL.Walsh....Herself

ChristineDevine....VideoNewscaster

MarkThompson....VideoNewscaster

ErnieAnastos....RexBlack,NewYorkNewscaster

KevinCooney....AtlanticAirCINC

RanceHoward....Chaplain

NelsonMashita....JapaneseTech

JeffPhillips....B-2Pilot

SayedBadreya....ArabPilot

AdamTomei....Sailor

JohnBradley....Lucas

KimberlyBeck....Housewife

ThomasF.Duffy....Lieutenant

JonShear....Thomson(asJonMatthews)

JimPiddock....Reginald

FredericW.Barnes....Himself(asFredBarnes)

EleanorClift....Herself

JerryDunphy....Himself

JackGermond....Himself

MortonKondracke....Himself

JohnMcLaughlin....Himself

BarryNolan....Himself

GeorgePutnam....Himself

EricMichaelZee....NorthridgeFieldReporter

PatSkipper....Redneck

CarlosLara....FarmerKid

MikeMonteleone....Butler

LeeStrauss....ElvisFanatic

LisaStar....WomanonRoof

MalcolmDanare....IntellectualonRoof

ArthurBrooks....TruckeronRoof

MichaelMoertl....Thief(asMichaelG.Moertl)

JamesJ.Joyce....MasterCPO

JoyceCohen....KimPeters

JulieMoran....Herself-\'EntertainmentTonight\'Reporter

RobinGroth....FlagstaffNewsAnchor

RichardPachorek....LAPDHelicopterPilot

GaryA.Hecker....AlienVocalEffects(voice)(asGaryHecker)

JonathanAdler....SecretServiceAgent(uncredited)

艾瑞克·阿瓦利ErickAvari....SETIChief(uncredited)

迪安·德夫林DeanDevlin....Eagle2Pilot(uncredited)

沃克·恩格尔VolkerEngel....ManinOffice(uncredited)

BobFriend....Himself-\'SkyNews\'Anchorman(uncredited)

JeffreyGold....GermanFighterPilot(uncredited)

LincolnD.Hiatt....ColinBarclay(uncredited)

JonathanKhan....Pilot(uncredited)

ScottMcKinley....JointChiefsofStaff(uncredited)

BryanD.Moss....IsraeliFighterPilot(uncredited)

RoyNewton....Pilot(uncredited)

GaryPike....HelicopterPassenger(uncredited)

NectarRose....Stripper(uncredited)

BonnieSilco....Bride(uncredited)

TadaoTomomatsu....BigHatGuyonTower(uncredited)

MichaelA.Valenzano....YoungPilot(uncredited)

TraceyWalter....Area51LabTechnician(uncredited)

DarenDochterman....BritishNewsTranslator(uncredited)

DarlaRae....Protestor-OmniHotel(uncredited)

詹姆斯·维斯JamesWith....BritishPilot(uncredited)

GregBronson....PoliceOfficeratWhiteHouse(uncredited)

MichaelHaddad....TrailerTrash(uncredited)

DarinMangan....Staffsergeant(uncredited)