William Daniels – 93
While retired nowadays – mostly, William Daniels is still recognizable to many of the younger folks. His 5-/episode guest appearance on Grey’s Anatomy is but a small part of his very illustrious career. William starred in ‘St Elsewhere’ which won him multiple Emmy Awards, and also ‘Boy Meets World’ which as most 90’s kids would know was decade defining. He also served as the Screen Actors Guild chairman from 1999 to 2001, along with his wife since 1951, Bonnie Bartlett. The couple adopted two sons together, named Michael and Robert, who have now grown and have careers of their own.