Hans Diehl

as Johann

as Old Unknown (6 episodes)

as Blinder

as Herbert Rothmann (1 episode)

as Lothar Bartels (1 episode)

as Hans-Christian

as Sönke Kilian (1 episode)

as Paul Käutner (1 episode)

as Bernhard Seidel - Julian's father

as Lorenz Paulsen (1 episode)

as Robert Bruckner (3 episodes)

as Kriminaldirektor (1 episode)

as Scafaro (2 episodes)

as Prof. Bovsky

as Ludwig Renner (1 episode)

as Salvatore Buco (1 episode)

as von Bütow

as George Bantzer (1 episode)

as Erlanger

as Dahl (1 episode)

as Rondorf (1 episode)

as Manfred Rosenbaum (1 episode)

as Karl Silbermann (1 episode), as Wilfrid Schneider (1 episode), as Prof. Heinz Kamroth (1 episode)

as Die Alten

as Pater Roland