Cary Grant was 27 in This Is the Night when he played the character 'Stephen Mathewson'.
That was over 91 years ago in 1932.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
In 1986 he died aged 82, starring in 133 films in his career, 132 of those after This Is the Night was first released. If he were alive today he would be 119.
In This Is the Night, I think Cary Grant looks: