After attending acting lessons at the Conservatory in Berne, she made her stage debut at the local Stadttheater.
Although being considered to play a leading role in Ben-Hur (1959) and El Cid (1961), she had to reject the offers because she had already signed for other projects in Germany. She later said that has been the biggest disappointment in her career.
As her roles on Ich denke oft an Piroschka (1955) and Das Wirtshaus im Spessart (1958) made her very popular in Germany, she was type casted as funny, tomboyish woman, although she wanted too play a sex bomb more often.
Lives on her mansion at Lake Geneva, Switzerland.
Member of the jury at the Cannes Film Festival in 1961
Named after Liselotte, Princess Palatine.
She and her husband, Helmut Schmid, had two children: a son Marc-Tell Schmid (b.1962) and a daughter Melisande Schmid (b.1967-d.1989, committed suicide aged 22).