Rupert Davies

Commissaire Jules Maigret

Helen Shingler

Madame Maigret

Neville Jason

Lapointe

Gillian Hills

Nicole Prieur

Yootha Joyce

Mlle. Motte

Mary Webster

Aline Palmari

Clive Cazes

Manuel Palmari

Tony Harwood

Dr. Francois Melan

Geoffrey Morris

Dr. Pardon

Martin Miller

Prof. Vivier

Luke Hanson

Acolant

Charles Leno

Director of P.J.

Donald Pickering

Préfet de Police

Murray Evans

Oscar Coutant

Victor Langley

Philippe Landry

Kenneth Benda

Jean-Baptiste Prieur

Stephen Zammit

Désiré

Ian Gray

Hotel Porter

Anne Tirard

Hotel Manageress

Leonardo Pieroni

Maigret's shadow

Stanley Davies

Sergeant Julien

Walter Horsbrugh

Police surgeon

Marc Barrett

Inspector Barnacle

Robin Scott

Police Inspector

Peter Sallis

(uncredited)