Richard Keith

Keith Thibodeaux (born December 1, 1950) is a former American child actor and musician, best known for playing Little Ricky on the television sitcoms I Love Lucy and The Lucy-Desi Comedy Hour. His last name, which was Cajun French, was changed by producer Desi Arnaz to "Keith" because "Thibodeaux" was too difficult to pronounce. He is the last living regular appearing cast member from I Love Lucy.