Billy Connolly, who is being treated for the "initial symptoms" of Parkinson's Disease, admitted earlier this year that he had started to forget lines during performances.
Speaking about it, he said: "This is f*****g terrifying. I feel like I'm going out of my mind."
There is no cure for the disease but symptoms can be controlled using a combination of drugs, therapies and occasionally surgery.
Actor Bob Hoskins announced his retirement last year after being diagnosed with the disease.
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ITV News spoke to Nick Channing-Williams who described the freezing conditions on board the car ferry that caught fire earlier today.
A widespread frost will affect the UK due to plummeting temperatures along with a lingering fog in several areas.
Members of the Queen's Guard have been assigned the protection of armed police, amid reports they could be targeted by terrorists.