Nick Wilder

as Klaus

as Rudi Oppermann

as Dr. Josef Bitterman

as Erwin Hoffmann

as Schwitzgebel

as Self (1 episode)

as Einar

as Dr. Wolf Sander (1 episode)

as Ragloid

as Delta C.O.

as Kapitän (1 episode)

as Leo Walton

as Johann Rambold (1 episode)

as Mathias Mack (1 episode)

as Sven Ludwig (1 episode)

as Henningfeld (1 episode)

as Tom (1 episode)

as Self (1 episode)

as Jan Fernmann

as Olav (voice) (1 episode)

as Self (3 episodes)

as Michael Cortez (1 episode), as Rademacher (1 episode), as Lukas Steiner (1 episode), as Klaus Reichmann (1 episode)

as Jan Fehrmann (8 episodes)

as Hans O. Meier

as Walter (1 episode)