Unknown World

Drilling into the forbidding depths of the earth!

With the cyclotram, an atomic-powered rock-boring vehicle, Dr. Jerimiah Morley leads an expedition into a subterranean world.

Adventure Science Fiction

Bruce Kellogg

(Wright Thompson, Jr.)

Otto Waldis

(Dr. Max A. Bauer)

Jim Bannon

(Andrew "Andy" Ostergaard)

Tom Handley

(Dr. James Paxton)

Dick Cogan

(Dr. George Coleman)

George Baxter

(Carlisle Foundation Chairman)

Marilyn Nash

(Dr. Joan Lindsey)

Victor Kilian

(Dr. Jeremiah Morley (uncredited))