I hate to hear that, I really liked the character he played on MASH.
The link led to another link that lists all the famous people that have died in 2011.
Some are very surprising, this one is just plain weird:

Yvette Vickers, circa 2010 (her body was discovered April 27, 2011), age 82: Best known for playing a supporting role in the 1958 sci-fi flick "Attack of the 50-Foot Woman," Vickers starred in other movies and TV shows and was Playboy magazine's July 1959 Playmate of the Month. Vickers' body was found in her Los Angeles home in 2011, but investigators say she had been dead for nearly a year.