as Dr. Roland
as Peter Knolle
as Gast bei Frau Stein
as Peter Sommer
as Leopold
as Peter Sommer (archive footage) (uncredited)
as Dr. Peter Bach
as Pierre
as Heinz Doll
as Peter Martens
as Graf Bobby Pinelski
as Peter Alexander
as Edward Collin
as Peter Martin
as Peter Hollmann
as Peter Schatz
as Dr. Fritz Geyer
as Peter Keller
as Self (archive footage)
as Toni Matthis
as Danilo
as Peter Hagen
as Dr. Gabriel Eisenstein
as Self
as Sänger
as Hugo
as Dr. Eduard Frank
as Peter von Münchhausen
as Peter Holunder
as (archive footage)
as Dr. Ulrich Hansen
as himself
as Peter Karmann
as Himself (archive footage)
as Peter Moll
as Dr. Otto Wilder
as Valentin Haase
as Graf Robert "Bobby" Pinelski
as Dr. Peter Markus
as Karl Munk
as Josef Schwejk
as Self - Host
