Adrienne Barbeau was 52 in Scooby-Doo on Zombie Island when she played the character 'Simone (voice)'.
That was over 26 years ago in 1998.
Today she is 78, and has starred in 84 movies in total, 45 of those since Scooby-Doo on Zombie Island was released.
In Scooby-Doo on Zombie Island, I think Adrienne Barbeau looks: