After the war, he attended a training programrun by the newly created DEFA[1] in the Soviet occupation zone.
[1] He worked under Müller on the 1954 film, Carola Lamberti – Eine vom Zirkus, under Jung-Alsen on Duped Till Doomsday (1957) and under Maetzig on First Spaceship on Venus (1960).
He also directed television miniseries, often writing the screen adaptations as well, such as with Hans Fallada's Wolf unter Wölfen in 1964.
[2] In 1966, Kasprzik directed the comedy Hände hoch oder ich schieße ("Hands up, or I shoot") with Rolf Herricht, a film that was banned by the Communists and not released.
[3] Kasprzik co-wrote the screenplay for Jeder stirbt für sich allein[4] from Fallada's book, Every Man Dies Alone, and was broadcast in three parts in September 1970.