Reparto
Dennis Moore
Jack Ryan
Byron Foulger
Prof. Elwood Henderson
Maris Wrixon
Dorothy Newton
George Lynn
Herman
Jan Wiley
Janet Lowe
Addison Richards
Gerhard Doenitz / Garret Donahue
Sarah Padden
Aggie
Russell Hicks
Police Chief Michael J. O'Brien
Roland Varno
Arnold Hoffman
Lash LaRue
Migsy
Neyle Morrow
Spike
John Eldredge
Walter Stark
Milburn Stone
Agent Tom Brant