70 Episoden
Deutsche Erstausstrahlung: 01.03.1966 (ZDF)
Die Detektivagentur „Checkmate“ unter der Leitung von Don Corey (Anthony George) sowie der emeritierte Oxford-Professor Carl Hyatts (Sebastian Cabot) und Jed Sills (Doug McClure) setzt im Auftrage ihrer Klienten dunkle Elemente ebenso – nämlich im wahrsten Sinne des Seriennamens - Schachmatt. Sie beschützen Personen, deren Leben in Gefahr ist - und die natürlich auch genug Geld für ihren exklusiven Service haben. Statt Verbrechen aufzuklären ist ihre Aufage, das Verbrechen zu verhindern, bevor es überhaupt verübt wird.
Checkmate ist die Sereinadaption eine in den USA berkannter Comicbuchreihe. In Deutschland wurden von den 70 Episoden lediglich 20 Episoden ausgestrahlt. Der Running Gag der Serie war, dass Hauptdarsteller Sebastian Cabot in jeder Folge die gleiche Kleidung trug. Dies hatte er sich vor Drehbeginn vertraglich zu verpflichtet.
Doug McClure - Jed Sills
Anthony George - Don Corey
Sebastian Cabot - Doktor Carl Hyatt
Jack Betts - Chris Devlin
Donna Douglas - Barbara
Ed Nelson - Carson
Barney Phillips - Captain Jack Howard
Kenny Lynch - Lt. Thomas Brand
Richard Conte - Juan Miguel Alvarez
Tyler McVey - Marine Major
Julie Adams - Janet Evans
Henry Jones - Ed Thurston
Martin Landau - Lieutenant Diaz
Phillip Pine - Harry Clark
1. Staffel
1.101 (Death Runs Wild)
2.102 Gestörte Hochzeitsreise (Interrupted Honeymoon)
3.103 (The Cyanide Touch)
4.104 (Lady on the Brink)
5.105 (Face in the Window)
6.106 (Runaway)
7.107 Zielscheibe Großer Hai (Target: Tycoon)
8.108 (The Deadly Shadow)
9.109 (The Dark Divide)
10.110 (Moment of Truth)
11.111 (The Mask of Vengeance)
12.112 (The Murder Game)
13.113 (The Princess in the Tower)
14.114 (The Terror from the East)
15.115 (The Human Touch)
16.116 (Hour of Execution)
17.117 (Don't Believe a Word She Says)
18.118 (Laugh Till I Die)
19.119 (Between Two Guns)
20.120 (A Matter of Conscience)
21.121 (Melody for Murder)
22.122 (Phantom Lover)
23.123 (The Gift)
24.124 (One for the Book)
25.125 Der Papier-Killer (The Paper Killer)
26.126 (Jungle Castle)
27.127 (The Deadly Silence)
28.128 (Goodbye Griff)
29.129 Der Tod tanzt mit (Dance of Death)
30.130 (Voyage Into Fear)
31.131 (Tight As a Drum)
32.132 (Death by Design)
33.133 (The Thrill Seeker)
34.134 (Hot Wind in a Cold Town)
35.135 (A Slight Touch of Venom)
36.136 (State of Shock)
2. Staffel
37.201 (Portrait of a Man Running)
38.202 (The Button Down Break)
39.203 (The Heat of Passion)
40.204 (Waiting for Jocko)
41.205 (Through a Dark Glass)
42.206 (Juan Moreno's Body)
43.207 (Kill the Sound)
44.208 (The Crimson Pool)
45.209 (The Two of Us)
46.210 (Nice Guys Finish Last)
47.211 (To the Best of My Recollection)
48.212 (A Funny Thing Happened on My Way to the Game)
49.213 (The Star System)
50.214 (The Renaissance of Gussie Hill)
51.215 (A Very Rough Sketch)
52.216 (The Yacht Club Gang)
53.217 (Death Beyond Recall)
54.218 (The Sound of Nervous Laughter)
55.219 (An Assassin Arrives, Andante)
56.220 (Remembrance of Crimes Past)
57.221 (Heart Is a Handout)
58.222 (A Brooding Fixation)
59.223 (A Chant of Silence)
60.224 Mordfall Parkman (Trial by Midnight)
61.225 (Ride a Wild Horse)
62.226 (So Beats My Plastic Heart)
63.227 (In a Foreign Quarter)
64.228 (Referendum on Murder)
65.229 (The Someday Man)
66.230 (Rendezvous in Washington)
67.231 (The Bold and the Tough)
68.232 (Will the Real Killer Please Stand Up?)
69.233 (Down the Gardenia Path)
70.234 (Side by Side)