Ted Cassidy was 33 in Jack and the Beanstalk when he played the character 'The Giant (voice)'.
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 1979 he died aged just 46, starring in 23 films in his career, 22 of those after Jack and the Beanstalk was first released. If he were alive today he would be 91.
In Jack and the Beanstalk, I think Ted Cassidy looks: