The dancer teacher, 69, from Hertfordshire, was part of the 2013 reality show's roster – and since then she's rubbed shoulders with Hollywood stars.
While working in the costume department for the Queen’s Platinum Jubilee, Jackie tells us she mingled with celebrities including Alan Titchmarsh, Omid Djalili and Tom Cruise.
She said the Mission Impossible star was "charming and so good-looking in real life" – but admits it led to one mortifying encounter.
Jackie explains: "When Tom arrived I was bowled over. It was the pinnacle of my career so far.
"Everyone was asking him for a selfie and I thought, 'I'm not going to miss out on this'.
"I went to put my arm around him, but his bodyguard intervened and went ‘No, no, no!’ Despite that he was fantastic.”
Jackie spent five weeks alongside her daughter Charlie in the Big Brother house and describes it as a “surreal experience”.
One of her more memorable moments was when she broke her wrist while doing star jumps and had to leave temporarily to go to A&E.
While in hospital Jackie says she felt compelled to stick to the show's strict rules about having no contact with the outside world.