Klaus Wildbolz

as Helmut

as Angus Clark

as Emil Scheidegger

as Jonathan McKenna

as Self (1 episode)

as Self (1 episode)

as Peter O'Mally (8 episodes)

as Mortimer

as Self (1 episode)

as Hugh Hanthorpe

as Dr. Norbert Sellmann (1 episode)

as Self

as Self (1 episode)

as Ferdinand Hardenberg

as Self (2 episodes)

as Self (3 episodes)

as Wenzel Hofer (144 episodes)

as Mr. Kunert (1 episode)

as Alec

as Self (1 episode)

as Clemens (13 episodes)

as Self (1 episode)

as Carl Simon (6 episodes)

as Schluchting (1 episode)