Supt Tom Halliday

Sergeant Ward

Mary Halliday

Tony Halliday

Police Constable in Information Room

Detective Sergeant in 'Q' car

Nightwatchman / Gilson

Deputy Commander

Chief Superintendent Jim Malcolm

Stone

Creasey

Slob

Detective Inspector at Chester

Colonel Blenkinsop

The Young Workman - Stanley James

The Young Workman's Wife - Mrs. James

Detective Inspector at Shipping Office

Cashier at Shipping Office

Detective Constable in Hospital Ward

House Surgeon

Secondhand Dealer