Fan CastingHalf & Half ( Mixed Actors) the movie

Half-sisters Mona and DeeDee Thorne, who slowly become friends when they move into the same San Francisco apartment building. Mona is the daughter of Phyllis Thorne, Charles Thorne's first wife, and DeeDee is Charles's daughter from his second marriage to Deirdre "Big" DeeDee Thorne. Initially, Mona resents DeeDee because DeeDee grew up in a rich and privileged household, while Mona and her mother struggled financially. As adults, Mona is more street smart and cynical, but prone to impulsive decisions while DeeDee is charming and optimistic, but naive at times. Throughout the series, the sisters confront their past resentments and learn to lean on each other as they navigate their problems in work, love, and family.