Ottomar Domnick
— (voice)
Karl Gerstner
— (voice)
Heinz Mack
— (voice)
Peter Brüning
— (voice)
Fritz Winter
— (voice)
Rupprecht Geiger
— (voice)
Lucas Samaras
— (voice)
François Morellet
— (voice)
Max Ackermann
— (voice)
Karl Heinz Türk
— (voice)
Shûsaku Arakawa
— (voice)
Ferdinand Kriwet
— (voice)
Ernst Wilhelm Nay
— (voice)
Felix Schlenker
— (voice)
El Lissitzky
— (voice)