Julie Walker

Mindy Clarke

Curt

J. Trevor Edmond

Col. Reynolds

Kent McCord

Riverman

Basil Wallace

Sinclair

Sarah Douglas

Mogo

Fabio Urena

Col. Peck

James T. Callahan

Santos

Mike Moroff

Mindy

Abigail Lenz

Mogo

Julian Scott Urena

Felipe

Sal Lopez

Chief Scientist

Jill Andre

Alicia (as Pia Reyes)

Pía Reyes

Store Owner

Dana Lee

Laboratory Technician

David Wells

Sentry

Billy Kane

Dr. Hickox

Anthony Hickox

Ballistics Technician

Brian Peck

Base Captain

Gary Schmoeller

Cop #1

Michael Deak

Science Technician

Michael Decker

Squad Leader

Joe Sikorra

Barrel Corpse (uncredited)

Rob Hampton

Quartermaster (uncredited)

Gerry Lively

Sergeant (uncredited)

John Penney