Générique complet
The Echo Murders
David Farrar
Sexton Blake
Dennis Price
Dick Warren
Pamela Stirling
Stella Duncan
Julien Mitchell
James Duncan (as Julian Mitchell)
Cyril Smith
P.C. Morgan
Ferdy Mayne
Paul Dacier
DA
Dennis Arundell
Phillip Rainsford
Johnnie Schofield
Purvis
PC
Paul Croft
Marat
Kynaston Reeves
Beales
Desmond Roberts
Cotter
Danny Green
Carl
Patric Curwen
Dr. Grey
TA
Tony Arpino
Fox
VH
Vincent Holman
Col. Wills
Howard Douglas
Preston
BH
Billy Howard
Sergeant Crossby
AT
Anders Timberg
Wrexham
HW
H Victor Weske
Otto
GP
Gerald Pring
Sir Horace Cranston
ND
Noel Dainton
Van Schuster
OW
Olive Walter
Housekeeper