Tim Considine

饰：Frank Hardy,19 episodes, 1956,

丹·斯图基

Dan Sturkie

饰：Police Detective,1 episode, 1956,

Brick Sullivan

饰：Policeman,5 episodes, 1956,

萨拉·塞尔比

Sarah Selby

饰：Aunt Gertrude,15 episodes, 1956, / ...

Arthur Shields

饰：Boles - Ex-Gardener,9 episodes, 1956, / ...

Frances Morris

饰：Landlady,5 episodes, 1956,

莫特·米尔斯

Mort Mills

饰：Policeman,3 episodes, 1956,

汤米·柯克

Tommy Kirk

饰：Joe Hardy,19 episodes, 1956,

Jess Kirkpatrick

饰：Policeman,unknown episodes,

唐·C·哈维

Don C. Harvey

饰：Policeman,2 episodes, 1956,

Robert Foulk

饰：Jackley the Plumber,15 episodes, 1956,

Charles Cane

饰：Police Sergeant,6 episodes, 1956,

拉斯·康威

Russ Conway

饰：Fenton Hardy,15 episodes, 1956,

Carole Ann Campbell

饰：Iola Morton,14 episodes, 1956,

弗洛伦茨·艾姆斯

Florenz Ames

饰：Silas Applegate,16 episodes, 1956,

Donald MacDonald

Donald MacDonald

饰：Perry Robinson,10 episodes, 1956,

威廉·亨利

William Henry

饰：Policeman,1 episode, 1956,