Keith Thibodeaux (born December 1, 1950) is a former American child actor of television and film and musician, best known for playing Little Ricky on the television sitcom 's I Love Lucy and The Lucy - Desi Comedy Hour, his last name "Thibodeaux '' which was Cajun French was changed by co-star Desi Arnaz, to "Keith '' because his surname was more difficult to pronounce. He is the last living regular appearing cast member from I Love Lucy
who was the child who played little ricky on i love lucy
Keith Thibodeaux