Father of Florian Martens (mother: Ingrid Rentsch)
Father of Susanne Uhlen and former father-in-law of her husband Charly Steinberger.
German voice of Bert from "Sesame Street" (1969)
Grandfather of Florian and Christopher Steinberger and/or Uhlen.
Has a daughter, Annette, with Johanna Göllnitz.
Step-father of Barbara Bertram.