Casey Kasem was 70 in Looney Tunes: Back in Action when he played the character 'Shaggy (voice)'.
That was over 19 years ago in 2003.
In 2014 he died aged 82, starring in 83 films in his career, 30 of those after Looney Tunes: Back in Action was first released. If he were alive today he would be 90.
In Looney Tunes: Back in Action, I think Casey Kasem looks: