Her mother Gloria Lansang hailed from Santa Rita, Pampanga, while her father Julio Danon was of French and Egyptian descent.

[1] Throughout the 1950s, Rosal starred in costume dramas such as Prinsipe Amante sa Rubitanya (1951), and in such neo-realist dramas as Lamberto Avellana's Anak Dalita (1956) and Badjao (1956), both co-starring with Tony Santos Sr., and Manuel Silos's Biyaya ng Lupa (1959), which she cited as the best film she has ever made.

She had no qualms appearing onscreen in bathing suits, engaging in kissing scenes or in playing villainous roles.

She was married briefly in 1957 to an American pilot, Walter Gayda, with whom she had a child, Toni Rose, who later became a television host.

In the 1970s, Rosal starred in Iyan ang Misis Ko, a family-oriented sitcom with Ronald Remy.

[2] In 1976, Rosal would also appear in Behn Cervantes's Sakada, a film which was banned by the martial law government of President Ferdinand Marcos.

[10] Rosal joined the Philippine National Red Cross as a volunteer-member of its Blood Program in 1950, and was elected to its Board of Governors in 1965.

The love was aimed at assisting unwed and needy pregnant mothers, as well as finding homes for unwanted children.