Robert Mitchum was 37 in The Night of the Hunter when he played the character 'Harry Powell'.
That was over 69 years ago in 1955.
In 1997 he died aged 79, starring in 139 films in his career, 84 of those after The Night of the Hunter was first released. If he were alive today he would be 106.
In The Night of the Hunter, I think Robert Mitchum looks: