
Kai Fischer (born Kai Anne Inge Fischer, March 18, 1934 or 1936, in Prague or Halle (Saale)) is a German film actress and author.
She began her career in the mid-1950s without formal acting training and quickly became known for portraying seductive and morally ambiguous characters, frequently appearing in crime films and Edgar Wallace adaptations such as Zimmer 13 (1964). In the early 1960s she created and starred in Die Karte mit dem Luchskopf (1963–1965), becoming television’s first female private detective with her own agency.
From the 1970s onward, Fischer successfully transitioned into more serious film and television roles, including appearances in works by Wim Wenders and popular crime series such as Derrick and Der Kommissar. In addition to acting, she worked as a screenwriter and crime novelist and later became a business owner in Munich.

Josefine M.
1970 · as Lady J.

The Serpent's Egg
1977 · as Hure

The Waltz King
1964 · as Gräfin Polensky

Lena Rais
1979 · as Hella

Happy Weekend
1983 · as Ella Huber

The Hellfire Club
1961 · as Yvonne

Holocaust II
1980 · as Dorothea

Too Hot to Handle
1960 · as Cynthia

Bullets Don't Argue
1964 · as Helen

Kassensturz
1984 · as Frau Bauermann

Room 13
1964 · as Pia Pasani

The Inn on Dartmoor
1964 · as Bardame

Girls of the Night
1958 · as Marlène

Escape from East Berlin
1962 · as Heidi Eckhardt

Unternehmen Schlafsack
1955 · as Schauspielerin Sylvia

The Goalie's Anxiety at the Penalty Kick
1975 · as Hertha Gabler

The Spessart Inn
1958 · as Bettina

Mädchen für die Mambobar
1959 · as Olga