Sam - teenage male, somewhat nerdy, but ultimately heroic.
Miguela Barns - teenage female, Sam's love interest.
Cpt William Lennicks - 30s male, leader of the military.
Maggie - female, really hot, really smart, works as a codebreaker for the government.
John Kellar - 50's/60's male, US Secretary of State.
Glen Whitman - 20's male, technogeek, comic relief.
Officer Jorge Figueroa AKA "FIG": 20's, Male, Dominican by way of the Louisiana Bayou. Chief Warrant officer in the Army. Spirited fellow who loves to sing. Close team member of Lennox.
Glen's Grandma: Female, African-American, 50's/60's/70's. A bit off her rocker. This feisty Grandma keeps tabs on what Glen is up to (2 scenes).
Mr. Hosney: Male. Caucasian. 40's. Sam's History teacher. Bored, over it kind of guy (1 scene).
Big Rhonda: Female, African-American, 30's/40's. Feisty, assertive pawn shop owner (1 scene).
Bobby Bolivia: Male. 30's/40's. Any ethnicity. This guy could sell ice to an Eskimo. Tries to get Sam to buy a car. Your typical wheelin' dealin' used car salesman (1 scene).
Mahfouz: 13 years old, Bedouin boy. (Bedouin is an Arab of any of the nomadic tribes of the Arabian, Syrian, Nubian, or Sahara deserts). He loves chocolate and gets excited when the soldiers bring him some. He lives in a Village close to where Lennox and his team are stationed, and has befriended the soldiers.