Jay North of “Dennis the Menace” (CBS, 1959-63) and Jon Provost of “Lassie” (CBS, 1957-64), tied at age seven were the youngest actors to play the lead in his own TV series.
“Lassie” actually ran from 1954-71, but Provost was not on all those years.
Who was the youngest actor to play the lead in his own TV series?
