克里斯托弗·乔治

Christopher George

饰：Ranger Michael Kelly

安德鲁·普莱尼

Andrew Prine

饰：Don Stober

理查德·杰克尔

Richard Jaeckel

饰：Naturalist Arthur Scott

琼·麦考尔

Joan McCall

饰：Allison Corwin

Joe Dorsey

Joe Dorsey

饰：Charley Kittridge, The National Park Supervisor

Charles Kissinger

Charles Kissinger

饰：Dr. Samuel Hallitt

Kermit Echols

饰：Walter Corwin

Tom Arcuragi

Tom Arcuragi

饰：Ranger Tom

Vicki Johnson

Vicki Johnson

饰：Ranger Gail

Catherine Rickman

Catherine Rickman

饰：June Hamilton

Mary Ann Hearn

Mary Ann Hearn

饰：Margaret Rogers, The First Victim

Mike Clifford

饰：Pat

David Newton

David Newton

饰：Mike

Mike Gerschefski

Mike Gerschefski

饰：George

Susan Orpin

Susan Orpin

饰：Bobby's Mother

David M. Holt Jr.

David M. Holt Jr.

饰：Lone Hunter (as David Holt)

Brian Robinson

Brian Robinson

饰：Bobby

Sandra Dorsey

饰：Sally Walker

Gene Witham

饰：Harry Walker

苏珊·巴克林尼

Susan Backlinie

饰：Victim (uncredited)

威尔·柯林斯

Will Collins

饰：Cameo Appearance (uncredited)

Amos Gillespie

Amos Gillespie

饰：Ranger (uncredited)

Kathy Rickman

饰：June

哈维·弗拉克斯曼

Harvey Flaxman

饰：Reporter

汤姆·阿库拉吉

Tom Arcuragi

饰：Tom