- Walter (Matthew McConaughey)
- Steven (Dennis Haysbert)
- Soldier (Ben Gavin)
- Arra (Claudia Kim)
- Sayre (Jackie Earle Haley)
- Pimli (Fran Kranz)
- Tirana (Abbey Lee)
- Laurie (Katheryn Winnick)
- Lon (Nicholas Pauling)
- Timmy (Michael Barbieri)
- Dr. Hotchkiss (José Zúñiga)
- Lucas Hanson (Nicholas Hamilton)
- Teacher (Inge Beckmann)
- Ex-Breaker (Alfredo Narciso)
- Jill (Eva Kaminsky)
- Toby (Robbie McLean).