Robin Williams was 41 in Mrs. Doubtfire when he played the character 'Daniel Hillard / Mrs. Doubtfire'.
That was over 31 years ago in 1993.
In 2014 he died aged 63, starring in 158 films in his career, 108 of those after Mrs. Doubtfire was first released. If he were alive today he would be 72.
In Mrs. Doubtfire, I think Robin Williams looks: