Popsugar Celebrity Rip Celebrities Who Died in 2018 63 Celebrities We Had to Say Goodbye to in 2018 28 March 2018 by Monica Sisavat Solís View On One Page Photo 21 of 63 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 21 John Mahoney The actor, who played Marty Crane on Frasier, passed away in February at the age of 77. Previous Next Start Slideshow RIPCelebrity DeathsBest Of 2018