Grey DeLisle was 38 in Batman: The Dark Knight Returns, Part 1 when she played the character 'Anchor Carla / Female Mutant (voice)'.
That was over 12 years ago in 2012.
Today she is 50, and has starred in 199 movies in total, 94 of those since Batman: The Dark Knight Returns, Part 1 was released.
In Batman: The Dark Knight Returns, Part 1, I think Grey DeLisle looks: