Lee Aaker, 77.
Most of you probably never heard of him or the show, Rusty from Rin Tin Tin. One of the first tv shows I ever saw, went for five seasons.
https://celebrity.nine.com.au/latest/child-star-adventures-of-rin-tin-tin-child-star-lee-aaker-dies/9d81adfc-aa6d-44ad-bc34-b358bb40cfba...