Amy Walz

External Links:. One of her roles was as the grandmother in the film adaptation of Roald Dahl's book "The Witches". She had a cameo appearance in the film A Beautiful Mind, and appears in rendered form in the video game Need for Speed: Underground. She was involved in films in five different decades, from the 1940s through the 1990s. Amy Walz is a fashion model and actress. Mai Zetterling (May 24, 1925-March 17, 1994) is an actress; she was born in Sweden and died in the United Kingdom from cancer, and lived for a time in Australia. Amy Walz - IMDb Entry (http://www.imdb.com/name/nm1102975/).