Famous comedian Billy Connolly no longer recognizes loved ones due to Parkinson's disease

Famous actor and comedian Billy Connolly is struggling to place his closest friends and family as his battle with Parkinson's gets worse.

Connolly, who was born in 1942 in Glasgow, Scotland, is no longer the man that he used to be and his great friend, Michael Parkinson, learned that the hard way.

During an interview on the Saturday Morning With James Martin for ITV, Parkinson revealed that he had an unpleasant dinner with Connolly because the actor had a hard time remembering him.

Parkinson shared that, during the meal, which he described as 'sad and awkward,' the legendary Scottish asked him how long they had known each other.

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This was a very uncomfortable question because the two have been friends for decades and seeing Connolly succumbing to the terrible disease broke Parkinson's heart.

Parkinson was recently in New York to present Connolly with an award, but the awkward dinner left him uneasy because Connolly didn't seem to understand where they were and what was the context behind it.

Still, despite the sad meal with his friend, Parkinson was able to feel some happiness when the Scotish actor placed his hand on his shoulders when they had their picture taken.

"The sadness of Billy now is that wonderful brain is dulled."

Sir Michael Parkinson, ITV, August 18, 2018

Connolly was diagnosed with Parkinson's after being submitted to surgery for his prostate cancer, and revealed it to the public in 2013 at a reception to raise awareness for the illness.

So far, there is no cure for Parkinson's, a disease that causes involuntary shaking, slow movement and stiff muscles, along with other symptoms, such as depression, anxiety, loss of balance and memory problems.

Connolly, who was knighted in October 2017 by Prince William for his services to the world of entertainment and charity work, isn't the only celebrity suffering from the condition.

57-year-old Michael J. Fox has been battling Parkinson's disease since he was 29 and he has since learned how to live with it, having participated in numerous awareness campaigns and created The Michael J. Fox Foundation for Parkinson's Research.