♾️ God Help Your Friends: Callan must break up the engagement between a lovely NATO interpreter with a grade-A security clearance and a man suspected of serving as a KGB informant. Does the woman's fiance really love her? Or does he love Moscow more? ♾️ It features Edward Woodward, William Squire, Patrick Mower, Russell Hunter, Stephanie Beacham, and Michael Jayston. ♾️ Callan is a British espionage drama thriller television series, which originally aired between 1967 and 1972. It features Edward Woodward as David Callan, an agent of a British state secret service dealing with internal security threats to the United Kingdom. Callan's section is responsible for removing those who pose a danger to the "innocent" by persuasion, blackmail, extortion, or death.