Tara Strong was 39 in The Secret Life of Walter Mitty when she played the character 'Airport Passenger (uncredited)'.
That was over 10 years ago in 2013.
Today she is 51, and has starred in 194 movies in total, 84 of those since The Secret Life of Walter Mitty was released.
In The Secret Life of Walter Mitty, I think Tara Strong looks: