Sabotage Squad

Lieutenant John Cronin

Edith Cassell

Eddie Miller

Carlyle Harrison

Charles 'Chuck' Brown

John Fuller

Police Inspector Hanley

Mr. Conrad

Middle Barber [script name: Harry]

George, end barber [script name only: Felix]

Recruiting Sergeant

Recruiting Station Doctor

Bomber

Guthrie

Booking Room Sergeant

Miss Cole, secretary

Dynamite Truck Driver

Smoke Shop Clerk

Smoke Shop Customer

Bookie in 'Cage'

Henchman Sam, trucker on phone

Office Henchman

Flower Shop Clerk

Unspecified Gambler