She was featured in world premieres of plays by Dürrenmatt and Frisch at the Schauspielhaus Zürich, and appeared as Buhlschaft in Jedermann at the Salzburg Festival.

[6] Schwiers appeared in more than 200 television productions, including popular series such as Tatort, Der rote Schal and Doktor Martin.

[7] Schwiers first directed a play at the Burgfestspiele Jagsthausen [de], Shakespeare's Was ihr wollt (Twelfth Night).

[4] She last appeared on stage at the age of 84 in the comedy Altweiberfrühling, with her daughter and her brother Holger Schwiers [de].

[2][4][8] The first film role for Schwiers was Hildegard in Heimliches Rendezvous [de] in 1949, directed by Kurt Hoffmann.