Feli Filu is a blue monster girl with long blue hair and large energetic eyes. She is curious about everything. The character was introduced as Buh's assistant, and was slowly made into one of the main characters on the show. In her role as Monster Reporter, she interviews children and adults, and sometimes even celebrities.
From August 2005, she was a recurring guest on the crafts series Mit-Mach-Mühle. The character was retired in 2007.