Canadian-American actor Peter Donat, who was best known for his role on 'The X Files', passed away at the age of 90. According to Variety, he died on Monday at his home in Point Reyes, California. The actor's wife, Maria, confirmed the news to The New York Times, revealing the death was caused due to complications of diabetes.

Mourning his death, American actor and writer David Duchovny tweeted, "Peter had an easy gravitas as a performer and seemed to come from that generation that took the art seriously but not too seriously. It was an honour to know him and work with him."