Rachael Lillis is an American voice actress and scriptwriter. She studied acting in Boston and New York City and has appeared in various theater productions, animated series and independent films. She was formerly based in New York City, but has since moved to Los Angeles in 2013.

Pokémon: The First Movie - Mewtwo Strikes Back is a 1998 Japanese anime fantasy adventure film directed by Kunihiko Yuyama. It is the first theatrical release in the Pokémon franchise. The film was first released in Japan on July 18, 1998. On July 8, 1999, an extended version of the film aired on Japanese television. In addition to an added prologue, the updated version included new animation and CGI graphics. The film primarily consists of three segments: Pikachu's Vacation, a 21-minute feature focusing on the series mascot Pikachu; Origin of Mewtwo, the 10-minute prologue added to the extended version of the film; and Mewtwo Strikes Back, the main 75-minute film feature. Overseas, the prologue can only be seen as a bonus short in DVD versions of Pokémon: Mewtwo Returns. The events of the film take place during the first season of Pokémon: Indigo League. The English-language adaptation was released in North America and other countries on November 10, 1999, by Warner Bros. Pictures