Edward L. Cahn Director Richard Denning Dr. Chet Walker Actor Angela Stevens Joyce Walker Actor Michael Granger Frank Buchanan Actor S. John Launer Capt. Dave Harris Actor Gregory Gaye Dr. Wilhelm Steigg Actor Linda Bennett Penny Walker Actor Tristram Coffin Dist. Atty. MacGraw Actor Harry Lauter Reporter 1 Actor Larry J. Blake Reporter 2 Actor Charles Evans Chief Camden Actor Pierre Watkin Mayor Bremer Actor Lane Chandler Gen. Saunders Actor Nelson Leigh Dr. Kenneth C. Norton Actor Don Harvey Lester Banning Actor Paul Hoffman Tom Dunn Actor Sam Katzman Producer