James Dean was 23 in Rebel Without a Cause when he played the character 'Jim Stark'.
That was over 69 years ago in 1955.
In 1955 he died aged just 24, starring in 32 films in his career, 13 of those after Rebel Without a Cause was first released. If he were alive today he would be 93.
In Rebel Without a Cause, I think James Dean looks: