Ellie Kemper was 38 in The Secret Life of Pets 2 when she played the character 'Katie (voice)'.
That was over 5 years ago in 2019.
Today she is 44, and has starred in 26 movies in total, 6 of those since The Secret Life of Pets 2 was released.
In The Secret Life of Pets 2, I think Ellie Kemper looks: