Skye Aubrey as Randy Cross

Jack Cassidy as Otto Vonner / Karl Vonner

Jackie Coogan as Jonathan

Broderick Crawford as Capt. O'Neal

Peter Haskell as Ray Burns

John Ireland as Lt. Gifford

Peter Lawford as Roger Cross

Gary Barton as Duke

Corinne Calvet as Mrs. Wickes

Billy Halop as Studio Engineer

John Lupton as Al

Kent Taylor as Wickes

Regis Toomey as Joe

Fredd Wayne as Clyde

Carl Byrd as Cameraman

Edward Cross as Clint

Damon Douglas as Andy

Bill Stout as Commentator

Elisha Cook Jr. as Studio Engineer (uncredited)

Monty O'Grady as Photographer (uncredited)

Hank Robinson as Party Guest (uncredited)