Yazon Varda was a dwarf and a member of Zoltan Chivay's company. He mostly likely fought at both the Battle of Brenna and Mayena. He and the rest of Zoltan's party first met the witcher when Geralt and his own group were making their way toward the Yaruga river from Brokilon, but Zoltan advised them to join him and his men and head eastward.
Other members of the company included:
They all appear in Baptism of Fire, the fifth book and third novel in the Witcher series.
The Witcher
In the Russian version of The Witcher computer game, the dwarf in The Hairy Bear is not Munro Bruys, but Yazon Varda. He looks the same and also speaks the same dialogue lines as the English version — only the name differs.