Liam Costner is the son of Hollywood star Kevin Costner and his former girlfriend Bridget Rooney, a socialite and heiress. He was born in 1996, a year after his parents had a brief affair. He is the youngest of Kevin Costner’s seven children and has six half-siblings from his father’s two marriages. He is also a musician and producer who has worked with several artists and bands. Liam Costner Biography Liam Costner was born on November 15, 1996, in the United States. His full name is Liam Timothy Costner. His father is Kevin Costner, an Oscar-winning actor, director, and producer.…