Zoltan (played by Jack Palance) is the Black Knight.  In addition to his starting equipment, he has a Helmet, a H6/H7 workhorse, and the 4 small treasures that the Soldiers and Company start with.  He will have these active with any spells on them freed when placed.

He has permanently hired the Company, Soldiers, Guard, Rogues and Patrol.  If the HQs of these native groups get killed, they still drop their treasures in the clearing.

When the Patrol are prowling, they can also appear in the clearing with the Amazon/Captain or your beloved, whichever moves first.  This means they will always regenerate at the end of week if they are prowling too. They will move from wherever they are to that clearing.

Zoltan appears at the Lost Castle chit with all the Company and Soldiers when it is placed. The Company and Soldiers always regenerate with him if applicable (i.e. if they are prowling at the end of the week), and move to his clearing from wherever they are currently placed at full strength (i.e. they can be on the board elsewhere before Zoltan appears, and then join him for the final battle). He and his natives will automatically block and attack your characters if possible.

He is placed on the lost castle chit when it is revealed. He will be hidden, have his Mace alerted and have seen hidden enemies. From then on he will do Hide, Alert (Mace) and Searches for the remaining phases, on the Peer table looking for hidden enemies.  The Company and Soldiers follow him.

In combat, play him like a character to the best of your ability, assuming he knows all the treasures you are carrying. If he can cast any spells, even if you aren't there, that can interfere with you (e.g. Protection from Magic or Lost) have him cast them.

No monsters attack or block him.  However he does attract monsters like any other character. So if you go looking for him too early, you will have a horde of lost castle monsters to deal with too.