Mark David Paul Dooley, who has appeared in dozens of films and TV programs, including “Sixteen Candles” and TV series “The Kids Are Alright,” and screenwriter Winnie Holzman, who created the 1990s series “My So-Called Life” and co-wrote the Broadway megahit “Wicked,” have shed a home fronting Malibu’s sandy La Costa Beach for $5.75 million.