Frank Welker was 37 in Star Trek III: The Search for Spock when he played the character 'Spock's Screams'.
That was over 40 years ago in 1984.
Today he is 78, and has starred in 386 movies in total, 351 of those since Star Trek III: The Search for Spock was released.
In Star Trek III: The Search for Spock, I think Frank Welker looks: