as Ludger von Heeren(3 eps)
as Richard Backenbrecht
as Paul Hayden(1 ep)
as Self(1 ep)
as Bob(1 ep)
as Ulf Radke(1 ep)
as Guido(1 ep)
as Mark Eschenbach(35 eps)
as Peter Tauschnitz(1 ep)
as Frank Deubner(1 ep)
as Albert von Lengsfeld(1 ep)
as Werner Lentfer(1 ep)
as Konrad Biber(1 ep)