Gerhard Polt as Erwin Löffler

Gisela Schneeberger as Irmgard Löffler

Dieter Hildebrandt as Dr. Friedhelm Eigenbrodt

Michael Gahr as Dr. Wilms

Werner Schneyder as Von Bronstedt

Enzo Cannavale as Paolo

Siegfried Mahler as Mr. Endress

Elisabeth Welz as Mrs. Endress

Isa Haller as Mrs. Häberle

Thomas Geier as Heinz Rüdiger

Pamela Prati as Violetta

Ambrogio Chirico as Giancarlo

Giulio Marchetti as Receptionist in high-class hotel

Luigi Tortora as Franco

Gottfried Drexler as Dr. Amöbius