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Colin GordonMr. Spencer- John ChappellJohn Musgrove
Ann LynnRose Taylor
Derren NesbittGriff- Keith FaulknerLen
William Morgan SheppardAlec (as Morgan Sheppard)- Hilda FenemoreCharlady
- Diana ChesneyCharlady
- Ian ColinCreighton
- Pamela ConwaySecretary
Colin TapleyHaynes
Kevin StoneyPolice Sergeant- Duncan LewisMortuary Attendant
- John DearthPolice Sergeant Hopkins
Lockwood WestPolice Inspector