Robin Dunne

Dean

Robert Knepper

Dr. Abbot

Sunny Mabrey

Sara

Amelia Cooke

Amelia

Christopher Neame

Dr. Nicholas Turner

Patricia Bethune

Colleen

Michael Warren

Agent Wasach

Natasha Henstridge

Eve

John Paul Pitoc

Hastings

Joel Stoffer

Portus

James Leo Ryan

Yosef

Savanna Fields

Young Sara

Reed Frerichs

ISD Staffer

Marc D. Wilson

Crew Chief

Matthew Yang King

Specialist Robert Kelley

Rick Dean

Cobb the Gas Station Guy

Christopher R. Gillum

Young Portus

Billy Bacon

Commander

Jim Cody Williams

Farmer at Gas Station

Mark Zecca

Tour Guest

Sean C. Ching

Grad Student

Dan Wells

Jake

Frank Crim

Communications Officer

Boni Yanagisawa

Female Student

Rob Hinderstein

Security Guard #1

Carl Ciarfalio

Security Guard #2

Troy Blendell

Autopsy Tech

Keith Camire

Military Soldier (uncredited)

Josh Cook

Jock (uncredited)

Joss Gomez

Student (uncredited)

Kari Ann Peniche

Cheerleader (uncredited)

Jason Sarcinelli

Adult Male Alien (uncredited)

Marc Scizak

Football Player (uncredited)