Didi Holtermann was born on November 28, 1895 in Oslo, Norway as Dagny Borghild Ivarson. She was an actress, known for Simen Mustrøens besynderlige opplevelser (1926), Til sæters (1924) and Fager er lien (1925). She was married to Magnus Falkberget. She died on December 17, 1975 in Norway.