Early silent film star made her screen debut in 1911. Costello met her future husband John Barrymore on the set of ‘The Sea Beast’ and during their lengthy kissing scene in this picture Dolores fainted in Barrymore’s arms. They married in 1928 despite the misgivings of her mother. In 1939, following the divorce from Barrymore (because of Barrymore’s drinking problems), Costello married Dr. John Vruwink who was her obstetrician who delivered both of her children and whom John accused her of having an affair with. After being forced into early retirement, (Costello’s physical appearance was damaged because of her extreme reaction to the studios’ harsh makeup to her very sensitive skin) Costello lived in semi seclusion in Southern Californian. Her grave is marked with the name Mum-mum, and she is actress Drew Barrymore’s grandmother. She is buried just outside the mausoleum where all the Barrymores were interred in Calvary Cemetery in East Los Angeles.