Unknown World

Bruce Kellogg

Wright Thompson, Jr.

Otto Waldis

Dr. Max A. Bauer

Jim Bannon

Andrew "Andy" Ostergaard

Dick Cogan

Dr. George Coleman

George Baxter

Carlisle Foundation Chairman

Marilyn Nash

Dr. Joan Lindsey

Victor Kilian

Dr. Jeremiah Morley (uncredited)

Tom Handley

Dr. James Paxton