Freigeist van Tazzy and his son
Ian Malcolm Müller were assigned to do some voice acting for the English award-winning short film
Delicacy (2014). They recorded their voices in their home office impersonating German soldiers in WW2. Only a fraction of the provided tapes were later used in the film as background sounds. However, the voices only appear as mumbling and can hardly be understood. Nevertheless father and son were both credited for their activities.