Friends actor Mike Hagerty, who was known on the hugely-popular sitcom as Mr Treeger, has sadly died at the age of 67.The star became a fan-favourite on the comedy hit, regularly involved in apartment dramas with the whole Hollywood cast as the building's superintendent for seven seasons. He also went on to appear in HBO semi-autobiographical show Somebody, Somewhere, which was inspired by star Bridget Everett's life. Announcing the devastating news on social media Friday 6 May, Bridget gave a poignant tribute to her co-star.