الثعابين السامة

Fred Olen Ray

Director

Treat Williams

Dr. David Henning

Mary Page Keller

Dr. Christine Edmonton Henning

Hannes Jaenicke

Dr. Eric Foreman

Catherine Dent

Susan Edmonton

Tony Denison

Maj. Gen. Thomas Sparks

Geoff Pierson

Gen. Arthur Manchek

Brian Poth

Billy Sanderson

Nicole Nieth

Cindy Sanderson

Christal Chacon

Nurse Josie Randall

Jim Storm

Sheriff Jack Crowley

Rick Hurst

Edgar Williams

Melissa Hayden

Katy

Marc McClure

Dr. Dutton

Andrew Stevens

Daniel Andrews

Chas. Allan

Orderly

Anthony Azizi

Male Terrorist

Larry Carroll

News Reporter

Greg Collins

Grover

Dan Golden

Writer

Sean McGinly

Writer