Here are 2 famous actresses from Switzerland died in 1990:
Trude Wyler (October 1, 1911 Degen-July 21, 1990 Palm Springs) also known as Gertrude Wyler was a Swiss actor.
Hedda Koppé (December 7, 1896 Biel/Bienne-April 20, 1990 Zürich) otherwise known as Hedwig Kopp was a Swiss actor.