John Stockwell

Michael Harlan

Danielle von Zerneck

Ellie Sawyer

Fisher Stevens

Vince Latello

Raphael Sbarge

Sherman

Richard Masur

Detective Isadore Nulty

Barry Corbin

Lew Harlan

Ann Wedgeworth

Dolores

Dennis Hopper

Bob Roberts

Candace Silvers

Irene

Beau Dremann

Matusky

Pat Simmons

Crystal

John Vidor

Jock #1

Vincent Barbour

Jock #2

Jaime Alba

Jock #3

Robert Beer

President Eisenhower

John Carter

General

Cameron Young

General's Aide

Noel Conlon

Secret Service Man

Jackson Bostwick

Sentry

Robert DoQui

Desk Sergeant

Elven Havard

Fireman

Linda Hoy

Librarian

Robin Allyn

Ellie's Friend

Michael Berryman

Mutant #1

Chuck Hemingway

Coy

Pamela Springsteen

Hall Monitor Ellie's Friend

Matt Hoelscher

Preppie

Jack O'Leary

Sentry at Air Force Guardhouse

Clare Peck

Policewoman

Joel Harrison

Wino

Ann Culotta

Trucker's Wife

Hank Calia

Neanderthal Man

Scott Bailey Spangler

Guard #2 at Air Force Guardhouse

Frank Welker

Alien (voice)

Dawna Lee Heising

Sorceress (uncredited)

Al Leong

Vietnamese Soldier (uncredited)

Gerald Okamura

Vietnamese Soldier (uncredited)