Jerry Mathers – 73

At just the age of nine, he was the star of the popular oldie Leave It to Beaver as Theodore “Beaver.” Mathers stayed with the show for an impressive six years and afterward moved to the big screen. He appeared in films like Trouble with Harry, This is My Love, and Men of the Fighting Lady.

Mathers retired early from acting so that he could focus on high school. However, in 2018, he appeared on a MeTV promo for Leave It To Beaver along with other classic shows. In 1996, after being diagnosed with Type 2 diabetes, Mathers enrolled in Jenny Craig’s weight loss program and lost over 40 lbs.