Friends star Mike Hagerty has died at the age of 67, his family have said.
The actor appeared in episodes of the hit US sitcom between 1995 and 2004, where he played building supervisor Mr Treeger.
He popped up alongside the main cast of David Schwimmer, Jennifer Aniston, Courtney Cox, Matt LeBlanc, Lisa Kudrow and Matthew Perry as his character enforced the apartment block's rules and weighed in on their various scrapes.
Hagerty's biggest role in the show came in the episode The One with the Ballroom Dancing, where Joey (LeBlanc) saved Rachel and Monica (Aniston and Cox) from being evicted by agreeing to practise ballroom dancing on the block's roof with Mr Treeger so that he could impress a love interest at the superintendents' ball.
Celebrity friends and former co-stars of Hagerty paid tribute to him after hearing the sad news of his death, with him being said to have passed away on 29 April.
Bridget Everett, who played his daughter in his most recent role on series Somebody, Somewhere wrote: "With great sadness, the family of Michael G. Hagerty announced his death yesterday in Los Angeles. A beloved character actor, his love of his hometown of Chicago and his family were the cornerstones of his life.
"Mike, a devoted husband, is survived by his wife Mary Kathryn, his sister Mary Ann Hagerty, her wife Kathleen O’Rourke, and their daughter Meg. He will be sorely missed."
She also added some treasured photos of them together to Instagram, writing: "I loved Mike the instant i met him. He was so special. Warm, funny, never met a stranger. We are devastated he has passed. Mike was adored by the entire cast and crew of Somebody, Somewhere. Our thoughts are with his wife and family."
Chelsea Handler, Katie Couric and Cat Power were among those offering their condolences.
Wanda Sykes commented: "Sending his family, you and the entire cast/crew lots of love."
Paul Feig added: "Oh no! This is devastating. He was so brilliant. I’m so sorry, Bridget."
Sarah Jessica Parker wrote: "No. No. No. no. Oh terrible loss and I will miss him on your show. Heartbreaking. Admired him for years. X"
Amy Sedaris added: "NOOOOOOOOO This is very sad."
Better Call Saul star Bob Odenkirk posted: "Mike Hagerty had the best presence in real life and onscreen. A joy to work with him in 'the Near Future'. He played an assassin who couldn’t work his gun. Great man."
Hagerty's career also included appearances in Curb Your Enthusiasm and Brooklyn Nine-Nine.
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