Fred Gwynne was 26 in On the Waterfront when he played the character 'Slim (uncredited)'.
That was over 70 years ago in 1954.
In 1993 he died aged 67, starring in 38 films in his career, 36 of those after On the Waterfront was first released. If he were alive today he would be 97.
In On the Waterfront, I think Fred Gwynne looks: