Marion Ross – 91

Marion Ross, who’s most known for her role in the Happy Days series, is now past her 90s but is still incredibly active within the industry! Many years may have gone by since she finished her stint in the series, but that does not mean she hasn’t had her fair share of successes after it! As a matter of fact, she was in the show called Brooklyn Bridge and films like The Evening Stars. The last movie she participated in was 2018’s Angels on Tap. That same year, however, she revealed that she’s decided to enter retirement.