Catherine "Cathy" Janet Cavadini (born April 21, 1961 in Long Beach, California, USA) is an American voice actress and singer. Most famous as the voice of Blossom on Cartoon Network's animated television series The Powerpuff Girls and Tanya Mousekewitz in An American Tail: Fievel Goes West and in the subsequent TV series, Fievel's American Tails. In 1998, Catherine was nominated for an Annie Award for "Outstanding Individual Achievement for Voice Acting by a Female Performer in an Animated Feature Production" for performing the voice and singing for the role of Mary in the animated movie Babes in Toyland. She also sang Dreams to Dream as the character Tanya Mousekewitz in the animated movie An American Tail: Fievel Goes West which was nominated for Best Song at the 1992 Golden Globe Awards. In addition, she has received two Emmy Award Certificates for contributing to Outstanding Sound on the TV series, The X-Files.