Mimi Mariani was a Belgian-Indonesian actress, model, and singer. She was born Troely Callebaut on June 8, 1928, in Malang, Dutch East Indies, to Petrus Fransiskus and Fien Callebaut.

Her sister were Sri Murniati, an Indonesian actress whom was referred as the Kasma Booty of Indonesia. Her brother, Emile Callebaut, was an Indonesian director who was the father of actress Doris Callebaut. She began her career as a child actress by joined Bintang Soerabaja troupe, and later joined Warnasari troupe as a singer and actress.