Loni Heuser was born on 22 January 1908 in Düsseldorf, Germany. She was an actress, known for Der Raub der Sabinerinnen (1954), Kommissar X - Drei goldene Schlangen (1969) and Die Dubarry (1951). She was married to Theo Mackeben. She died on 6 March 1999 in Berlin, Germany.