James Coburn was 28 in The Night America Trembled when he played an uncredited character.
That was over 67 years ago in 1957.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
In 2002 he died aged 74, starring in 123 films in his career, 122 of those after The Night America Trembled was first released. If he were alive today he would be 95.
In The Night America Trembled, I think James Coburn looks: