Veteran actor Bruno Kirby, who viewers of Entourage saw just a couple of weeks ago on the show, has died of leukemia. He was diagnosed with the disease recently, and died on Monday.

Most people will know Kirby from his roles in When Harry Met Sally... and City Slickers, playing Billy Crystal's best friend in both films, but he had a ton of film and TV roles, including Good Morning, Vietnam, Donnie Brasco, Hoffa, Sleepers, and This Is Spinal Tap. His long TV resume includes guest spots on Frasier, It's Garry Shandling's Show, Tales From The Crypt, Columbo, Homicide, Mad About You, Kojak, Emergency, Room 222, and M*A*S*H.