Brian Blain (1936–1994) was an Australian film and television actor. He is best remembered for his role as wealthy businessman Gordon Hamilton in the Seven Network soap opera Sons and Daughters from 1981 to 1987 when the series was cancelled, and his role as Captain Jacob Hilliard in the film sequel Return to the Blue Lagoon (1991). In that same year, he also starred opposite Anne Haddy playing Michael Daniels, a love interest of her character Helen Daniels in the Network Ten soap opera Neighbours. Only a few years previously Haddy had played his housekeeper Rosie in Sons and Daughters. He died of a heart attack in 1994, at the age of 57.