Knud Riepen (born in 1981 in Hamburg) is a German actor who provides voices for the German dub of Thomas and Friends.
He is known for appearing in theatre shows, but is most famous for appearing in various television shows in Germany, such as "Tatort", "Notruf Hafenkante", and "Die Rettungsflieger". He is also known for voicing Shoseki and Kimimaro from "Naruto: Shippuden" and Narain from "D.Gray-man".
- He voices Muck in the 2015 series of "Bob the Builder", who was voiced by Lutz Harder in the old series. Harder, Jens Wendland, Fabian Harloff, Achim Schülke, Tobias Diakow, Achim Buch, Eberhard Haar, Robert Missler and Holger Potzern voiced characters in the German dub while Rob Rackstraw, David Menkin, Rupert Degas, Lucy Montgomery and Steven Kynman voiced for the English versions.