David Bowie was 19 in NBC television special: The Pursuit of Pleasure when he played an uncredited character.
That was over 57 years ago in 1967.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
In 2016 he died aged 69, starring in 149 films in his career, 146 of those after NBC television special: The Pursuit of Pleasure was first released. If he were alive today he would be 76.
In NBC television special: The Pursuit of Pleasure, I think David Bowie looks: