Jaime Pressly was 29 in Horton Hears a Who! when she played the character 'Mrs. Quilligan (voice)'.
That was over 16 years ago in 2008.
Today she is 46, and has starred in 35 movies in total, 10 of those since Horton Hears a Who! was released.
In Horton Hears a Who!, I think Jaime Pressly looks: