John Derrick

饰：Detective Inspector Regan

Hilary Liddell

饰：Beatrice Peck

迈克尔·布伦南

Michael Brennan

饰：Eddie Norman

Dorothy Gordon

饰：Lily Norman

Arthur Hambling

饰：Mr. Norman

芭芭拉·利克

Barbara Leake

饰：Miss Knaggs

James Ottaway

饰：Victor Peck

Rowena Gregory

饰：Bella Wilson

奥斯卡·奎塔克

Oscar Quitak

饰：Charlie Norman

琼·杨

Joan Young

饰：Mrs. Norman