Stateside actor Finn, who appeared in popular television series including Friends, "Seinfeld" and The Middle, has died aged 60.
The skilled improv artist succumbed at his home in Los Angeles this Monday having undergone treatment for a cancer diagnosis from 2022 onward, as reported by reports.
"He saw everyone as a friend - just potential friends he hadn't encountered," his relatives shared in a statement.
They added that he had "experienced life to the fullest - with zest and passion".
Finn's first television role was on the George Wendt Show in 1995, where he appeared as the lead character's sibling.
He subsequently landed a regular part on "Murphy Brown" from 1995 to 1997.
He appeared as the character Joe Mayo in "Seinfeld" in the late 90s, portraying a host known to delegate unpleasant chores to his guests.
Throughout the 90s and 2000s, he appeared as a guest star on several popular shows, such as:
His most famous role for his portrayal of Bill Norwood in The Middle, appearing throughout eight seasons between 2011 and 2018.
His work in movies encompass It's Complicated (2009) and Santa Paws 2: The Santa Pups.
Beyond his acting parts, Finn was a skilled improviser and also taught at the Colorado university, where he was an adjunct professor.
He was part of a comedy group of six named "Beer Shark Mice".
"Pat guided, supported, and advised countless students during his career and you'd be hard-pressed to find someone anyplace who has a bad thing to say about him," his loved ones expressed.
Paying homage, peer Richard Kind noted there was "not a more kind, gentle, or funny, grounded individual you could encounter".
"Always positive, helping you be funnier and better. A great dad, a great guy," he shared online.
Pat Finn is survived by his wife Donna, his three kids, and his parents and siblings.
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