Anthony George starred as Don Corey and Doug McClure as Jed Sills, his assistant, as private investigators for the San Francisco-based firm Checkmate, a company with the mission of stopping -- or checkmating -- crime before it happened. Sebastian Cabot also starred as Carl Hyatt, a university criminology professor who served as a consultant to the firm.
Note: Media availability may change without notice. Page Authorship: Omnimystery News.
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