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Gene Folkes, who appeared on the US version of the show in 2010 which was previously hosted by the billionaire businessman, told BBC Radio 4's Today programme about Mr Trump’s behaviour while filming.

“He [Mr Trump] can be quite charming and engaging when you first meet him,” said Folks. “It quickly denigrates, it’s quite surprising.

“He tends to integrate people’s looks, their attire or some physical attribute they may have – their ethnicity, their breasts.

“He asked us, as the guys, to rate the beauty of the women.”