Reginald Parker / Edward Grey

John Loder

April Manby Carson

June Duprez

Lieutenant Bob Carson

Michael St. Angel

Chief Inspector W.R. Allison

Miles Mander

Dorothy Kent

Rose Hobart

Dr. Manby

Gilbert Emery

Leslie Shelton

Rex Evans

Inspector Graham

Matthew Boulton

Banks

Olaf Hytten

Mrs. Manby

Lydia Bilbrook

Lord Mayor Herman Brandon R. Clive

Ian Wolfe

Inspector (Uncredited)

Milton Owen

First Passenger (Uncredited)

Norman Ainsley

Bellboy (Uncredited)

George Atkinson

Inspector (Uncredited)

Frank Baker

Bellboy (Uncredited)

Frank Benson

Hotel Maid (Uncredited)

Lillian Bronson

Bellboy (Uncredited)

George Broughton

Policeman (Uncredited)

Tom Burton

Clerk (Uncredited)

Wheaton Chambers

Pilot (Uncredited)

Harry Clay

Chauffeur (Uncredited)

Robert Cory

Vacuuming Bellboy (Uncredited)

Alec Craig

Pilot (Uncredited)

Victor Cutler

Manby's Butler (Uncredited)

Herbert Evans

Hotel Desk Clerk (Uncredited)

Sherry Hall

Ticket Clerk (Uncredited)

Alec Harford

London Waitress (Uncredited)

Joy Harington

Emily (Uncredited)

Lilyan Irene

Inspector (Uncredited)

Colin Kenny

Inspector (Uncredited)

Stanley Mann

Cashier (Uncredited)

Audrey Manners

Policeman (Uncredited)

Frank Mayo

Barman (Uncredited)

Tom McGuire

Pamela (Uncredited)

Mary McLeod

Captain Perry (Uncredited)

Gavin Muir

Second Passenger (Uncredited)

Joseph North

Inspector (Uncredited)

Robert R. Stephenson

Dorothy's Maid (Uncredited)

Doris Stone

Newsie (Uncredited)

Gus Taillon

Fireman (Uncredited)

David Thursby

Policeman (Uncredited)

Alan Ward

Luggage Clerk (Uncredited)

Eric Wilton

Policeman (Uncredited)

Steve Winston

Mrs. Kent (Uncredited)

Florence Wix