Checkmate – Season 1
Anthony George
Don Corey
Doug McClure
Jed Sills
Sebastian Cabot
Dr. Carl Hyatt
28 Jan 1973
13 Sept 1974
28 Mar 1967
12 Jan 1967
17 Jan 1975
11 Feb 2016
21 Sept 1957
18 Jul 2021
08 Jan 1989
23 Sept 2008
24 Sept 2024
06 Nov 2017
17 Aug 2021
08 Apr 2008
02 Oct 1955
21 Jan 2026
15 Jan 1981
23 Mar 1997
23 Sept 2002
12 Dec 2004