(m. 1968; div. 1970)
(m. 1959; div. 1961)
Blackman appeared in her first motion picture, Good Day for a Hanging, in 1959. She had a significant role in two Elvis Presley films. She played Maile Duval in the 1961 film Blue Hawaii and the following year played Rose Grogan in Kid Galahad. She also appeared with Dean Martin in Career (1959), and played Ellen Spelding, the love interest of Kreton, the character of Jerry Lewis in Visit to a Small Planet (1960). Her other film appearances included roles in The Great Impostor (1961), Twilight of Honor (1963), Daring Game (1968), Pets (1974), Macon County Line (1974), and Moonrunners (1975).
Blackman made her television acting debut as a guest performer in a 1957 series, Hawkeye and the Last of the Mohicans. Among her television appearances was her role as Hilary Gray in the 1964 Perry Mason episode, "The Case of the Ruinous Road." She also made single appearances on Bonanza, I Spy and Gunsmoke.
She married actor Rockne Tarkington in July 1968 during the Civil Rights Movement. They divorced in October 1970. They have two children together.