Mike Hagerty, the character actor best known for his recurring role as Mr. Treeger onFriends, has died.

On Friday, Everett shared the news of Hagerty’s death on Instagram on behalf of his family.

A cause of death has not been disclosed.

He will be sorely missed."

Everett also wrote a personal post paying tribute to her costar.

“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 ofSomebody Somewhere.Our thoughts are with his wife and family.”

“They said they loved seeing him in such a nuanced role and loved his performance.

He was truly the best.

He will be missed.”

Oh terrible loss and k will miss him on your show.

Admired him for years," Parker wrote.

He was so brilliant," Feig commented.

Bayer wrote, “I’m so sorry, Bridget.”

“Brilliant actor, and we know from you, a brilliant human,” wrote Najimy.

“So sorry B.”