The Bank guard is a man employed by the Draynor Village bank after the Wise Old Man's violent robbery inside the bank. Players can talk to him to watch video of the robbery. The first time its free but after that players must pay him 50 coins to see it from then on. If a player does not have the 50 coins in their inventory the guard can just take the money from the player's bank, since the Bank guard works with the bank.
There is also a guard in the tree next to the bank. When you have stew in your inventory, he will say, "Is that stew for me?", and if a player's answer is affirmative, he will pay them 30 coins for it. Strangly enough, if a player tries to chop down the oak to his right the guard will yell at them, "Watch what you're doing with that hatchet you nit!" or a multitude of other responses. When the Wise Old Man and Zenevivia start to make their move against the Wizards' Tower, he informs them so they can prepare to repel the robbers. After the robbery, the player can cut down the tree he is up in exchange for 5000 coins. Once cut, the tree never respawns.