|This article is about the character in Time of Contempt. For the assassin in The Witcher, see Professor (assassin).|
Ralf Blunden (d. 1267) was a known murderer nicknamed "the Professor" who regularly worked with Heimo Kantor and Little Yaxa. They were killed by Geralt in Anchor while tracking Ciri and Yennefer. His nickname was mostly likely ironic as he was known for using words and phrases that he did not seem to entirely comprehend.