Leonard Nimoy was 20 in Zombies of the Stratosphere when he played the character 'Narab'.
That was over 72 years ago in 1952.
In 2015 he died aged 83, starring in 96 films in his career, 89 of those after Zombies of the Stratosphere was first released. If he were alive today he would be 93.
In Zombies of the Stratosphere, I think Leonard Nimoy looks: