Tress MacNeille was 56 in Futurama: The Beast with a Billion Backs when she played the character 'Various (voice)'.
That was over 16 years ago in 2008.
Today she is 72, and has starred in 138 movies in total, 30 of those since Futurama: The Beast with a Billion Backs was released.
In Futurama: The Beast with a Billion Backs, I think Tress MacNeille looks: