• David Janssen as Richard Diamond
• Regis Toomey as Lt. Dennis "Mac" McGough [ 1-2 ]
• Russ Conway as Lt. Pete Kile [ 3-4 ]
• Barbara Bain as Karen Wells [ 3 ]
• Mary Tyler Moore as Sam [ 3 ]
• Roxanne Brooks as Sam [ 3-4 ]


• recurring characters:
• Bill Erwin as Sgt. Riker [ 1 ]
• Hillary Brooke as Laura Renault [ 3-4 ]
• Richard Devon as Sgt. Alden [ 3-4 ]

                            Original
  Episode #     Prod #      Air Date   Titles
_____ ______ ___________  ___________ ___________________________________________

• Season 1

1      1-01      9608      01/Jul/57   The Mickey Farmer Case
2      1-02      9616      08/Jul/57   Custody
3      1-03      9614      15/Jul/57   Escape from Oak Lane
4      1-04      9618      22/Jul/57   The Homicide Habit
5      1-05      9620      29/Jul/57   Picture of Fear
6      1-06      9622      05/Aug/57   Hit and Run
7      1-07      9624      12/Aug/57   The Big Score
8      1-08      9626      19/Aug/57   The Chess Player
9      1-09      9602      26/Aug/57   The Torch Carriers
10     1-10      9600      09/Sep/57   The Pete Rocco Case
11     1-11      9628      16/Sep/57   Venus of Park Avenue
12     1-12      9604      23/Sep/57   The Merry-Go-Round Case

• Season 2

13     2-01                02/Jan/58   The Space Society
14     2-02      8602      09/Jan/58   The Dark Horse
15     2-03                16/Jan/58   The Payoff
16     2-04                23/Jan/58   Double Jeopardy
17     2-05                30/Jan/58   Arson
18     2-06                06/Feb/58   The Ed Church Case
19     2-07      8612      13/Feb/58   Chinese Honeymoon
20     2-08                20/Feb/58   Rodeo
21     2-09                27/Feb/58   A Cup of Black Coffee
22     2-10                06/Mar/58   The George Dale Case
23     2-11                13/Mar/58   Juvenile Jacket
24     2-12                27/Mar/58   Pension Plan
25     2-13                10/Apr/58   Short Haul
26     2-14                17/Apr/58   Another Man's Poison
27     2-15                24/Apr/58   The Purple Penguin
28     2-16                01/May/58   Lost Testament
29     2-17                08/May/58   The Percentage Takers
30     2-18                22/May/58   Widow's Walk
31     2-19                29/May/58   The Bungalow Murder
32     2-20                12/Jun/58   One Foot in the Grave
33     2-21                26/Jun/58   Snow Queen

• Season 3

34     3-01      6801      15/Feb/59   The Sport
35     3-02      6803      22/Feb/59   Pack Rat
36     3-03      6807      01/Mar/59   Body of the Crime
37     3-04      6805      08/Mar/59   Soft Touch
38     3-05                15/Mar/59   Boomerang Bait
39     3-06      6817      22/Mar/59   Matador Murder
40     3-07                29/Mar/59   Murder at the Mansion
41     3-08                05/Apr/59   Marineland Mystery
42     3-09                12/Apr/59   Charity Affair
43     3-10                19/Apr/59   Two for Paradise
44     3-11                03/May/59   Crown of Silla
45     3-12                10/May/59   Jukebox
46     3-13                17/May/59   Echo of Laughter
47     3-14                24/May/59   The Limping Man
48     3-15                31/May/59   The Hideout
49     3-16                07/Jun/59   Rough Cut
50     3-17                14/Jun/59   Family Affair
51     3-18                21/Jun/59   Design for Murder

• Season 4

52     4-01      3202      05/Oct/59   The Hoodlum
53     4-02                12/Oct/59   Act of Grace
54     4-03      3206      19/Oct/59   The Bookie
55     4-04                26/Oct/59   The Client
56     4-05                02/Nov/59   The Runaway
57     4-06                09/Nov/59   No Laughing Matter
58     4-07                16/Nov/59   The Messenger
59     4-08                23/Nov/59   The Counselor
60     4-09                30/Nov/59   The Image
61     4-10                07/Dec/59   The Adjustor
62     4-11                14/Dec/59   Marked for Murder
63     4-12                21/Dec/59   The Caller
64     4-13                28/Dec/59   One Dead Cat
65     4-14                11/Jan/60   Dead to the World
66     4-15                18/Jan/60   Seven Swords
67     4-16                25/Jan/60   The Fine Art of Murder
68     4-17                28/Jun/60   The Popskull
69     4-18                05/Jul/60   And Whose Little Baby Are You?
70     4-19                19/Jul/60   Fallen Star
71     4-20                02/Aug/60   Coat of Arms
72     4-21                09/Aug/60   Double Trouble
73     4-22                16/Aug/60   The Lovely Fraud
74     4-23                23/Aug/60   Accent on Murder
75     4-24                30/Aug/60   East of Danger
76     4-25                06/Sep/60   Running Scared
77     4-26                UNAIRED     The Mouse

NOTES
Reruns of the early episodes were syndicated under the title "Call Mr. D".

There are two titles on record with no matching episode known:
Secret Cargo, production number 9612, was slated for broadcast at the end of the 1st season on 30 Sep 57. It may have been re-titled and shown in the 2nd season as perhaps #25 "Short Haul".
The Botticelli Miniatures was slated for broadcast on 23 Jan 58, and may also have been re-titled and shown in the 2nd season as perhaps #30 "Widow's Walk" or #33 "Snow Queen".

Thanks to Nancy Durgin, Dr. Ron Evans, Ann Mathis & "Colonel X" for their contributions to this guide.

The home sites for this guide are http://epguides.com/ and http://www.TVRage.com/.