Kasperl und der Mann vom Mond is a signature play depicting the contemporary treatment of Kasperl’s character in children's puppet theatre. However, it is the Moon Man, not Kasperl, who opens the performance and then engages in dialogue with the young audience, following the codes that have become customary for this repertoire. The text promotes additional involvement with the audience by referring several times to Gerdt von Bassewitz's well-known tale, Peterchens Mondfahrt [Little Peter's Trip to the Moon], published in 1912.

The play can be performed by 2 to 4 puppeteers.

The Moon Man finds himself on Earth after having secretly travelled in the astronauts' rocket returning from a mission to his planet. He meets Kasperl's grandmother, whom he asks to take control of the rocket to take him back to the moon. When Kasperl and Seppl notice that he is missing, they fly to his rescue in another rocket. The Moon Man wants the grandmother to stay with him all the time to cook for him, which she refuses. When they arrive on the Moon, Kasperl and Seppl trick the Moon Man into thinking they are Moon Calves and then blind him with the light of a torch. Kasperl, Seppl and the grandmother all flee with the rockets, leaving the Moon Man relieved to be alone.