Zarah Leander as Astree Sternhjelm

Karl Martell as Dr. Sven Nagel

Ferdinand Marian as Don Pedro de Avila

Paul Bildt as Dr. Pardway

Lisa Helwig as Die alte Amme

Werner Finck as Herr Söderblom

Julia Serda as Ana Sternhjelm

Boris Alekin as Dr. Luis Gomez

Edwin Jürgensen as Reeder Shumann

Carl Kuhlmann as Präfekt

Géza Földessy as Chauffeur

Franz Arzdorf as Doctor #1 in Puerto Rico

Harry Hardt as Doctor #2 in Puerto Rico

Roma Bahn as Ebba

Günther Ballier as Steward

Bob Bauer as Ship Officer

Karl Hannemann as Police Officer

Max Hiller as Don Pedro's Servant

Werner Kepich as Police Officer

Hans Kettler as Feverish Police Officer

Carl Merznicht as Spanish Singer

Ernst Rotmund as Angry Police Officer

Werner Scharf as Jose Garcia Hernandez

Hasso Sherief-Ossmann as Emilio

Franz Stein as Falk