Thilda Fønss was born on October 7, 1888 in Copenhagen, Denmark as Thilda Elisabeth Lilja Johnsson. She was an actress, known for De Dødes Ø (1913), Hævnens Nat (1916) and Republikaneren (1923). She was married to Poul Thürmer and Olaf Fønss. She died on October 1, 1952.