Season 4 Episode
- Season 4 The Hoodlum
- Season 4 Act of Grace
- Season 4 The Bookie
- Season 4 The Client
- Season 4 The Runaway
- Season 4 No Laughing Matter
- Season 4 The Messenger
- Season 4 The Counselor
- Season 4 The Image
- Season 4 The Adjustor
- Season 4 Marked for Murder
- Season 4 The Caller
- Season 4 One Dead Cat
- Season 4 Dead to the World
- Season 4 Seven Swords
- Season 4 The Fine Art of Murder
- Season 4 The Popskull
- Season 4 And Whose Little Baby Are You?
- Season 4 Fallen Star
- Season 4 Coat of Arms
- Season 4 Double Trouble
- Season 4 The Lovely Fraud
- Season 4 Accent on Murder
- Season 4 East of Danger
- Season 4 Running Scared
- Season 4 The Mouse
Richard Diamond, Private Detective - Season 4 Episode 26 The Mouse
6.20 30 minutes A French woman gets threats from a supposedly dead war criminal who knows the whereabouts of a fortune in smuggled diamonds.
