While everyone was busy tuning into Sunday's Super Bowl spectacle, actor John Mahoney passed away at the age of 77.
His publicist confirmed the sad news the following evening, revealing that Mahoney was at a Chicago-area hospice in the days leading up to his death.
According to The Guardian, the actor died from complications of throat cancer.
Mahoney was best known for his role as Martin Crane, Frasier (Kelsey Grammer) and Niles's (David Hyde Peirce) father one one of TV's most beloved spin-off sitcoms Frasier.
In recent years, Mahoney had a recurring role on Hot in Cleveland. He played the role of Roy, the love interest of Betty White's character, Elka, from 2011 to 2014. His last television appearance was in Foyle’s War in 2015.
Mahoney's career spanned over three decades, and his filmography includes appearances in classics like The American President. He had stints on Cheers as well as 3rd Rock from the Sun, and he also did some voice work for the animated films Antz and Atlantis.
The notoriously private star has claimed to have been in many relationships, but he has never been married, and had no children.
Still, he was a father figure to many, including some of Hollywood's most popular entertainers. Mahoney's former colleagues and co-stars, including Grammer, took to social media to pay tribute to the late star.