<Li> Anastasia Bredikhina as Patty </Li> <Li> Francesca Angelucci Capaldi as the Little Red - Haired Girl and Frieda . Describing the Little Red - Haired Girl, Capaldi says: "She's very nice and kind and has a great heart . She really does like Charlie Brown, but he has no idea, because he's shy and awkward ." </Li> <Li> Kristin Chenoweth as Fifi, Snoopy's love interest . Chenoweth created "a series of conversational - like sounds" to create Fifi's language, using Melendez's Snoopy recordings as a guide, and making his sounds more feminine . </Li> <P> Snoopy's siblings also appear during the end credits . </P>

Who does kristin chenoweth play in the peanuts movie