Uli Krohm

as Leopold

as Johnson (voice)

as Heinrich Bischoff

as Großvater Heinrich (2 episodes)

as Herr Schneider

as Vater Rost (voice)

as Karl-Heinz Möller (16 episodes)

as Alter Nazi (1 episode)

as Alfred Sieling (2 episodes), as Sieling (1 episode)

as Karl Brenner (1 episode)

as Jan Amund (1 episode)

as Helmut

as Jürgen Willer (1 episode)

as Jochen 'Joe' König (1 episode)

as Dietrich Specht (1 episode), as Wachmann Krause (1 episode)

as Harald Manschitz (1 episode)

as Abschleppwagenfahrer

as Leiter der U.F.O. Union Galaxy (1 episode)

as Benno Bolinski (12 episodes)

as Klaus Zange (1 episode)

as Kalle

as Uwe

as Harald Richter (1 episode)

as Grigori (1 episode)