|Age||12 (until "Have You Ever Been Unsupervised", when he turned 13)|
|Last Appearance||"The Finale"|
|Voiced By||Jeff Bennett|
Dieter Liederhosen is a German kid who attends Hazelnut Middle School and is in the same grade/classes as Pepper Ann, Nicky Little and Milo Kamalani. He appears in several episodes, the most notable being "To Germany With Love" in which he sends his father in Germany a video of his life in Hazelnut.
In "Have You Ever Been Unsupervised" he has his 13th birthday.