Richard Keith — 1950
I Love Lucy was a massive hit on television in the 1950s. However, the key cast members were long gone because the show aired over 60 years ago. Only one cast member from I Love Lucy who had a credited role is still living today: Keith Thibodeaux or Richard Keith.
Keith played Little Ricky from 1956 to 1960. He even demonstrated his drumming abilities on occasion. That, of course, was not only his huge sitcom experience. Keith played Johnny Paul Jason in a dozen episodes of The Andy Griffith Show. He is one fortunate actor who can say he got credits on two true classics. He joined the band David and the Giants in 1967 but departed after becoming a Christian a few years later.