Michael J. Fox hasn't minced his words when describing US President Donald Trump.
There have been many phrases and comparisons used for the 45th President of the United States and Fox's is just as savage.
During an interview with the Guardian, the actor suggested Trump resembles his ultimate adversary from Back to the Future.
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"Every worst instinct in mankind has been played on [by Trump], and for me that's just anathema. Biff is president!" he said.
Fox took particular issue with Trump mocking a disabled reporter in the lead up to the 2016 US Election.
The Republican candidate rudely tried to mimic New York Times reporter Serge Kovaleski during a campaign rally, which garnered widespread criticism.
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Michael J. Fox said: "When you see your particular group mocked, it's such a gut punch. It's so senseless and cheap. There's no way I get up in the morning and mock orange people."
Fox, who was diagnosed with the degenerative disorder of the central nervous system back in 1991, first went public with his condition in 1998, but was able to continue acting. He's remained optimistic in the decades since he was handed the news and has been trying to keep himself busy in the industry ever since.
Fox admits his Parkinson's has now made life much harder, adding that sometimes he needs a wheelchair because every step 'is a frigging math problem'.
"Parkinson's is harder for the people around me than it is on me," he said. "The wide variety of movement, from being frozen to careening down the street like a pinball, yeah, that's hard. But in terms of my feelings about the progress of it, that's just my situation."
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As a result, it seems like he's prepared to officially hang up the proverbial boots.
The Back To The Future star spoke about his 'second retirement' in his new book, No Time Like the Future, saying that his 'work as an actor does not define me'.
He wrote: "The nascent diminishment in my ability to download words and repeat them verbatim is just the latest ripple in the pond.
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"There are reasons for my lapses in memorization - be they age, cognitive issues with the disease, distraction from the constant sensations of Parkinson's, or lack of sensation because of the spine - but I read it as a message, an indicator.
"There is a time for everything, and my time of putting in a twelve-hour workday, and memorizing seven pages of dialogue, is best behind me. At least for now."
Earlier this month Fox admitted that he's now finding acting increasingly 'tough', as his Parkinson's disease has affected his short term memory so much that he can't remember lines anymore.
Featured Image Credit: Universal PicturesTopics: Entertainment, Celebrity, Donald Trump