Wolfgang Heinz

as Professor Hans Mamlock

Ursula Burg

as Ellen Mamlock

Hilmar Thate

as Rolf Mamlock

Lissy Tempelhof

as Dr. Inge Ruoff

Doris Abeßer

as Ruth Mamlock

Ulrich Thein

as Ernst

Harald Halgardt

as Dr. Hellpach

Herwart Grosse

as Dr. Carlsen

Peter Sturm

as Dr. Hirsch

Franz Kutschera

as Dr. Werner Seidel

Kurt Jung-Alsen

as Bankier Schneider

Günter Naumann

as Kurt Walter

Agnes Kraus

as Schwester Hedwig

Günter Grabbert

as Simon

Manfred Krug

as SA-Sturmbannführer

Bruno Carstens

Johannes Curth

Hans Flössel

Walter E. Fuß

Horst Giesen

Gisela Graupner

Karl-Helge Hofstadt

Heide Kipp

Johannes Maus

Hans Teuscher

Ellen Weber