Kathrin Fricke (a.k.a. coldmirror, Kaddi or Kreatur im Spiegel) is a German Youtuber who became famous for her Gag Dubs of the Harry Potter movies. So far, she has completed the first ("Harry Potter und ein Stein” ) and the second movie ("Harry Potter und der geheime Pornokeller" ); she is currently working on dubbing the fourth movie ("Harry Potter und der Plastikpokal" ). Apart from dubbing, Coldmirror does sketches on various themes, a Vlog Series and Misheard Lyrics.