Dirk Back, who played Urmel in this play is an Urmel-Fan himself. A few years before, the author of the Urmel-Book Max Kruse asked him to record the audio version of the book.
Althrough the author of the book "Urmel aus dem Eis", Max Kruse, wasn't mentioned in the credits, on the website of Sat.1, in a special part about the play, Kruse was mentioned a lot of times, containing his biography and a few of his quotes about the book.
This play is partly based on both the original novel by Max Kruse and the marionette play by the "Augsburger Puppenkiste", especially based on the costumes and set.