Richard Diamond, Private Detective poster

Richard Diamond, Private Detective (1956)

Action · Crime · Drama

Richard Diamond, Private Detective is an American detective drama which aired on radio from 1949 to 1953, and on television from 1957 to 1960.

IMDb rating: 7.6 (329 votes)
Episode average: 7.3 -0.3 vs IMDb
Seasons: 4
Language: EN
Type: TV series

Rating trend: this show's seasons do not settle into one shape. Rising Shows ranks whole shows by the shape of their rating trend rather than one average score, which is how you find a show that got better rather than a show that started well.

Browse shows by rating shape → Open in Rising Shows app → View on IMDb

Ratings refreshed Oct 3, 2026 · 4 seasons indexed

Cast

Seasons

Season 1 (1957)

7.37 avg 11 episodes 7.5 → 6.8 30 min avg

Rollercoaster

Season 1 episodes - IMDb ratings
#	Title	Rating	Votes
1	The Mickey Farmer Case	7.5	43
2	Custody	7.4	40
3	Escape from Oak Lane	7.8	32
5	Picture of Fear	6.6	57
6	Hit and Run	7.2	26
7	The Big Score	7.5	27
8	The Chess Player	7.1	32
9	The Torch Carriers	7.5	22
10	The Pete Rocco Case	8.0	35
11	Venus of Park Avenue	7.7	21
12	Merry-Go-Round Case	6.8	47

Season 2 (1958)

7.38 avg 21 episodes 7.5 → 7.6 30 min avg

Season 2 episodes - IMDb ratings
#	Title	Rating	Votes
1	The Space Society	7.5	18
2	The Dark Horse	7.3	20
3	The Payoff	7.1	18
4	Double Jeopardy	7.5	24
5	Arson	7.3	19
6	The Ed Church Case	7.3	21
7	Chinese Honeymoon	7.4	19
8	Rodeo	7.4	26
9	A Cup of Black Coffee	7.3	25
10	The George Dale Case	7.6	21
11	Juvenile Jacket	7.6	17
12	Pension Plan	7.4	18
13	Short Haul	7.3	17
14	Another Man's Poison	7.7	23
15	The Purple Penguin	6.9	21
16	Lost Testament	7.2	16
17	The Percentage Takers	7.2	19
18	Widow's Walk	7.6	17
19	Bungalow Murder	7.2	17
20	One Foot in the Grave	7.5	19
21	Snow Queen	7.6	17

Season 3 (1959)

7.29 avg 33 episodes 6.9 → 7.2 30 min avg

Rollercoaster

Season 3 episodes - IMDb ratings
#	Title	Rating	Votes
1	The Sport	6.9	20
2	Pack Rat	7.1	18
3	Body of the Crime	7.6	23
4	Soft Touch	7.1	17
5	Boomerang Bait	7.3	13
6	Matador Murder	6.8	15
7	Murder at the Mansion	8.0	19
8	Marineland Mystery	6.8	19
9	Charity Affair	6.7	14
10	Two for Paradise	7.6	14
11	Crown of Silla	7.3	16
12	Jukebox	7.1	19
14	The Limping Man	8.0	17
15	Hideout	7.0	13
16	Rough Cut	6.9	16
17	Family Affair	7.7	16
18	Design for Murder	7.4	17
19	Hoodlum	7.6	24
20	Act of Grace	6.9	20
21	Bookie	7.1	14
22	The Client	6.8	15
23	The Runaway	7.7	15
24	No Laughing Matter	7.2	19
25	The Messenger	7.7	10
26	The Counselor	7.8	21
27	The Image	7.4	20
28	The Adjuster	7.4	12
29	Marked for Murder	7.6	21
30	The Caller	7.0	12
31	One Dead Cat	7.3	18
32	Dead to the World	7.5	17
33	Seven Swords	7.1	20
34	The Fine Art of Murder	7.2	20

Season 4 (1960)

7.11 avg 10 episodes 7.3 → 6.5 30 min avg

Rollercoaster

Season 4 episodes - IMDb ratings
#	Title	Rating	Votes
1	The Popskull	7.3	11
2	And Whose Little Baby Are You?	7.0	15
3	Fallen Star	7.2	18
4	Coat of Arms	7.2	13
5	Double Trouble	7.7	13
6	The Lovely Fraud	7.5	14
7	Accent on Murder	6.8	13
8	East of Danger	6.4	22
9	Running Scared	7.5	16
10	The Mouse	6.5	18