Peter Fonda

Character: Eddie Slocum

Sharon Hugueny

Character: Pam Burns

Nick Adams

Character: Tarragoo

Deborah Walley

Character: Debbie

Beatrice Straight

Character: Mrs. Burns

Joseph Campanella

Character: Prof. Reese

Kent Smith

Character: Dr. Shoemaker

Malachi Throne

Character: Prof. Schwartz

Nancy Rennick

Character: Mary Reese

Jennifer Billingsley

Character: Karen