Recently declassified MI5 intelligence files have unveiled a Cold War-era incident involving celebrated British actor Dirk Bogarde.

The documents reveal that the film star was 'clearly disturbed' and 'troubled' after being informed by British security services that his name appeared on a KGB list as a 'practising homosexual,' with warnings that he risked being ensnared in a Russian sting operation.

Bogarde, who passed away in 1999, was never publicly open about his sexuality, though he shared his life with Anthony Forwood, his partner and manager.

In the late 1950s, an unnamed source, who had been compromised during a visit to Moscow, provided the Russians with a list of six British homosexuals, including Bogarde.

The revelation was subsequently conveyed to Bogarde in 1971 when MI5 officers traveled to the south of France to warn him and investigate any potential attempts of compromise.

The meeting took place at the British consulate in Nice, where Bogarde, residing in Grasse, expressed his dismay and disbelief over the allegations, calling them 'absurd.' The report noted that Bogarde, then 50, declared himself quite capable of maintaining responsible personal conduct.

An MI5 agent wrote that Bogarde appeared visibly perturbed, noting, 'He had committed no misdemeanors and always behaved circumspectly.

For one thing, he had the greatest admiration and respect for his father … and would never do anything which would have upset his family.'

The files further illuminate that Bogarde was apprehensive about the prospect of visiting Russia in the future, due to the potential risk of a setup.

Whereas evenings in Russia often involved drinking, which could lead to innocuous gestures being misinterpreted, he expressed concern.

The agent reassured him that any kompromat would likely require more substantial evidence than casual affection.

The catalyst for MI5's involvement was information from a KGB defector codenamed 'Kago,' who had informed British intelligence of a recruitment attempt targeting a young British actor in Moscow during 1958-9, linked to a film named something akin to 'the kingdom of something.' This clue led MI5 to investigate Bogarde, who starred in the film 'Campbell’s Kingdom,' as well as other actors.

As part of their investigation, MI5 agents consulted American entertainment industry publications, such as Variety, to locate British actors who might have traveled to Moscow.

Among those enlisted for further scrutiny were Tommy Steele, Peter Arne, Michael Craig, Stanley Baxter, and Bill Travers.

Intriguingly, the defector purportedly described the actor of interest as 'a young actor, a very nice man' and 'nice looking,' descriptors which ultimately helped rule out Bogarde’s co-star in 'Campbell’s Kingdom,' James Robertson Justice, from the investigation.

As one internal memo wryly noted, 'No one could call Justice “young” – he was born in 1912 [sic]; or good looking – he wears a full beard.'

While the files eventually led to Bogarde being ruled out as a viable candidate for KGB recruitment, the episode highlights the pervasive paranoia and personal vulnerability faced by public figures ensnared in the geopolitical intricacies of Cold War espionage.