A 20 year old Leonard Nimoy in 1952

Leonard Simon Nimoy is best known for his role of Spock in the
original Star Trek series (1966–1969). He received three Emmy
Award nominations during the series. Nimoy began acting at
the age of eight in local theater productions.

 
Diana Ernestine Earle Ross is 70 today

1959

John Ernest "Johnny" Crawford

Before becoming widely known for his role as Mark McCain on the long-
running ABC western series, The Rifleman (1958-1963), he free-lanced
for several years, accumulating over 60 TV credits. At age nine,Crawford
first performed before a national audience as one of the original members
of the Musketeer’s on The Mickey Mouse Club (1955-1959).