- Sasha Roiz - Parker
- Ian Holm - Terry Rapson
- Richard McMillan - Dennis
- Nassim Sharara - Saudi Delegate
- Carl Alacchi - Venezuelan Delegate
- Kenneth Welsh - Vice President Becker
- Michel 'Gish' Abou-Samah - Saudi Translator
- Kenneth Moskow - Bob
- Glenn Plummer - Luther
- Adrian Lester - Simon
- Nestor Serrano - Gomez
- John Maclaren - Veteran Scientist
- Richard Zeman - Flight Director
- Perry King - President Blake
- Mimi Kuzyk - Secretary of State
- Vitali Makarov - Yuri, Russian Astronaut
- Russell Yuen - Hideki, Japanese Astronaut
- Chris Britton - Vorsteen
- Christian Tessier - Aaron
- Rick Hoffman - NY Businessman on Bus
- Alan Fawcett - Commander Daniels
- Sheila McCarthy - Judith
- Amy Sloan - Elsa
- Karen Glave - Maria
- Joe Cobden - Zack
- Caroline Keenan - Tina
- Matt Adler - Truck Radio Announcer (voice)
- Nobuya Shimamoto - Japanese Policeman
- Robin Wilcock - Tony
- Jesus Perez - Mexican (NWS) Janitor
- Martin Doepner
- Érik Ajduk
- Kim H. Winther
- Roland Emmerich
- Manon Lapointe
- Danielle Boucher
- Julie Breton
- Lawrence Inglee
- Liam Kiernan
- Mark Gordon
- Derek Casari
- Blake Neely
- Harald Kloser
- Tim Gomillion
- David Lucarelli
- Bob Beher
Capítulo disponible en las siguientes plataformas:
