Leonard Nimoy was 52 in Star Trek III: The Search for Spock when he played the character 'Capt. Spock/Elevator Voice'.
That was over 39 years ago in 1984.
In 2015 he died aged 83, starring in 96 films in his career, 66 of those after Star Trek III: The Search for Spock was first released. If he were alive today he would be 92.
In Star Trek III: The Search for Spock, I think Leonard Nimoy looks: