Grey DeLisle was 43 in Batman: Gotham by Gaslight when she played the character 'Sister Leslie / Jason / Additional Voices (voice)'.
That was over 6 years ago in 2018.
Today she is 50, and has starred in 199 movies in total, 38 of those since Batman: Gotham by Gaslight was released.
In Batman: Gotham by Gaslight, I think Grey DeLisle looks: