Vendel is an wizened elder troll who resides in Heartstone Trollmarket, possibly the leader or at least a leading figure in their community.
Vendel is light tan and has large horns and long, white hair.
He is knowledgeable in all things Troll, such as artifacts, their history, alchemy, etc. He often helps the gang when they are in a jam and they always go to him if there is an emergency or if Trollmarket is in jeopardy.
At first, Vendel was skeptical of Jim being the Trollhunter and Blinky being a good teacher to Jim, due to Jim being a human and Blinky's past failures. As the series went on, he grew to truly trust the two and has accepted Jim as the new protector of the Troll world.