In 2003 Harald Siepermann was approached by the management of the famous boxing brothers Wladimir and Vitali Klitschko. They wanted to have a television series that would surround their animated alter egos. Harald Siepermann commented on the project, “We developed a premise ‘I spy’-style and I also did some first designs. It never got off the ground, but it was quite a lot of fun with these guys, who were actually very nice.”
Harald Siepermann did character design for the television series and, together with Christian Schnalke, wrote the synopsis for the episodes. Here are some sketches and color designs of the brothers Klitschko.