Robin Williams was 54 in Happy Feet when he played the character 'Ramon / Lovelace (voice)'.
That was over 17 years ago in 2006.
In 2014 he died aged 63, starring in 158 films in his career, 50 of those after Happy Feet was first released. If he were alive today he would be 72.
In Happy Feet, I think Robin Williams looks: