Darth Vader was played by David Prowse in the original Star Wars trilogy.
He told the Christian O’Connell Breakfast Show: “I’m involved with the Royal Marsden Hospital appeal because I’m undergoing treatment for prostate cancer, would you believe. I’m having my very last treatment this morning.
“I’ve had two months’ radiotherapy treatment at the Royal Marsden. It’s the most fantastic hospital you could ever wish to go to.”
James Earl Jones provided the voice for Vader in the films as Prowse’s West Country accent was felt to be unsuitable for the part.
Prowse, 73, told the show he felt “fantastic”.
“The only thing I’ve had is hot flushes and my wife tells me I’m going menopausal,” he said. “It’s amazing what can be done so long as you catch it early.
“Every man over the age of 50 should have a PSA test (a blood test for prostate cancer) and that just gives you some indication of whether you have prostate problems.”
After Star Wars, Prowse took his huge frame to the small screen as the Green Cross Code man, teaching youngsters to stop, look and listen before crossing the road in a long-running TV campaign.
