Heimo Kantor was a known murderer who regularly worked with Ralf Blunden and Little Yaxa. The three were killed by Geralt at the inn in Anchor while tracking Ciri and Yennefer. He is described a tall and very thin, with oily, shining black hair.
'Your denial is too swift,' barked the third man, as tall and thin as a beanpole. His hair was black and glistened as if covered in grease.'
— pg(s). 41, Time of Contempt (UK edition)