Japanese spies attempt to subvert America's war effort; G-Men attempt to thwart their plot.
Rod Cameron
Rex Bennett
Roland Got
Chang Sing
Constance Worth
Vivian Marsh
Nino Pipitone
Oyama Haruchi
Noel Cravat
Ranga
George J. Lewis
Lugo
Maxine Doyle
Marie [Ch. 8]
Donald Kirke
Muller - Pier 17 Thug [Ch.1]
Ivan Miller
Pier 17 Customs Inspector [Ch.1]
Walter Fenner
Williams - Financial Agent [Ch.1]
C. Montague Shaw
Prof. Nicholson [Ch. 3-4]
Harry Burns
Tony Mills [Ch. 4, 12-13]
Forbes Murray
James Kennedy [Ch. 12]
Hooper Atchley
Harrison J. Caldwell [Ch. 5]
Robert Homans
Capt. Gorman [Ch. 12-13]
Allen Jung
Fuji - Escaped Japanese Spy [Ch.2]
