Jan Josef Liefers

as Jojo

as Self

as Doktor Bockmeier

as Maurice Chevalier

as Self

as Self

as Prof. Dr. Dr. Karl-Friedrich Boerne

as Heinz Hellmich

as Prof. Dr. Dr. Karl-Friedrich Boerne

as Joachim Vernau

as Self (2 episodes)

as Älterer Kornelius Holmer (voice), Director, Producer

as Prof. Karl-Friedrich Boerne

as Bernd Küster (7 episodes)

as Joachim Vernau

as Self (7 episodes)

as Self (1 episode)

as Self (archive footage) (1 episode)

as Self (1 episode)

as Bernd Lürssen (1 episode)

as Karl-Friedrich Boerne

as Rainer

as Arthur Ahnepol (6 episodes)