Cipher Bureau
Tráiler
Reparto
Sidney Miller
Jimmy
Leon Ames
Maj. Philip Waring
J. Scott Smart
Carlson
Stanley Blystone
Army Lieutenant
Don Dillaway
Paul Waring
Bobby Barber
Bud Geary
Joan Woodbury
Therese Brahm
Jason Robards Sr.
Ellsworth
Hooper Atchley
Cmdr. Nash
Charlotte Wynters
Helen Lane
Gustav von Seyffertitz
Albert Grood
George Lynn
Lt. Tydall (as Peter Lynn)
Thomas Carr
Michael Jeffers
Charles Meakin
Frank O'Connor
Carl Stockdale
Judge
Robert Frazer
Paul's Counsel
Tenen Holtz
Simon Herrick
Si Wills
Lt. Clarke
Charles McAvoy