阿曼達·皮特 Amanda Peet....Kate Curtis
切瓦特·埃加福特 Chiwetel Ejiofor....Adrian Helmsley
桑迪·牛頓 Thandie Newton....Laura Wilson
奧利弗·普萊特 Oliver Platt....Carl Anheuser
托馬斯·麥卡錫 Thomas McCarthy....Gordon Silberman (as Tom McCarthy)
伍迪·哈裏森 Woody Harrelson....Charlie Frost
丹尼·格洛弗 Danny Glover....President Thomas Wilson
連姆·詹姆斯 Liam James....Noah Curtis
摩根·莉莉 Morgan Lily....Lilly Curtis
Zlatko Buric ....Yuri Karpov
ALEX的扮演著：畢崔斯·羅森 Beatrice Rosen....Tamara
Alexandre Haussmann ....Alec
Philippe Haussmann ....Oleg
Johann Urb ....Sasha
約翰·比靈斯列 John Billingsley....Professor West
黃經漢 Chin Han....Tenzin
Osric Chau ....Nima
張錚 Chang Tseng....Grandfather Sonam
盧燕 Lisa Lu....Grandmother Sonam
Blu Mankuma ....Harry Helmsley
喬治·席格 George Segal....Tony Delgatto
史蒂芬·麥克哈蒂 Stephen McHattie....Captain Michaels
帕特裏克·波查 Patrick Bauchau....Roland Picard
吉米·米斯特雷 Jimi Mistry....Dr. Satnam Tsurutani
Ryan McDonald ....Scotty
Merrilyn Gann ....German Chancellor
亨利·歐 Henry O....Lama Rinpoche
邁克爾·巴佛 Michael Buffer....Boxing Announcer
梁誌華 Simon Leung....Ark Bridge Crew
Patrick Gilmore ....Ark Communications Officer
Dean Marshall ....Ark Communications Officer
Ron Selmour ....Ark Boarding Officer
Viv Leacock ....Ark Boarding Officer
Chris Boyd ....Ark Boarding Officer
Donna Yamamoto ....AF1 Science Officer
Doron Bell ....AF1 Science Officer (as Doron Bell Jr.)
David Orth ....AF1 Lieutenant
Lyndall Grant ....Governor
Jason Diablo ....Ark Tech Officer
Ty Olsson ....AF1 Officer
Zinaid Memisevic ....President Sergey Makarenko
Vincent Cheng ....Chinese Colonel
Igor Morozov ....Russian Interpreter
B.J. Harrison ....Woman Comforting Child (as BJ Harrison)
Dominic Zamprogna ....Paramedic
Karin Konoval ....Sally - President's Secretary
Mary Gillis ....Jackson's Neighbor
Rick Tae ....Megaphone Officer
Parm Soor ....Saudi Prince
Gerard Plunkett ....Isaacs - MI6 Officer
Paul Tryl ....Zultan
Andrei Kovski ....Zultan's Trainer
Val Cole ....News Reporter - Tikal
Eve Harlow ....Cashier
Sean Tyson ....Interrogating Officer
Leonard Tenisci ....Italian Prime Minister