Character: Captain Jack Devlin
Actor: Richard Wills-Cotton
Episode: War Games

Leader of the Regular Army contingent in the war games. He used to be Foyle's sergeant and was the man who arrested Markham. Devlin wins the war game with a clever ruse. A man who rarely plays by the rules it turns out that Markham received a light sentence because Devlin planted the necklace that was submitted as primary evidence.