as Dr. Peter Bach

as Dr. Roland

as Dr. Otto Wilder

as Peter Martens

as Peter Alexander

as Hugo

as Leopold

as Self (archive footage)

as Peter Hagen

as Edward Collin

as Self - Host

as Self - Host

as Dr. Peter Markus

as Peter Sommer

as Graf Robert "Bobby" Pinelski

as Peter Holunder

as Peter Schatz

as Self (archive footage)

as Dr. Fritz Geyer

as Peter Hollmann

as Dr. Eduard Frank

as Valentin Haase

as Graf Bobby Pinelski

as Graf Bobby Pinelski

as Peter von Münchhausen

as Pierre

as Toni Matthis

as Peter Moll

as Dr. Ulrich Hansen

as Peter Martin

as Heinz Doll

as Josef Schwejk

as Peter Knolle

as Peter Karmann

as Dr. Gabriel Eisenstein

as Self - Subject

as Danilo

as Gast bei Frau Stein

as Sänger

as Karl Munk

as Peter Keller

as (archive footage)

as Self

as Peter Sommer (archive footage) (uncredited)

as Sänger

as himself

as Himself (archive footage)

as Self (archive footage)