Here is an exhaustive list of the custom NPCs that heRO has. Most (but not all) were scripted by GM-Pandora ^_^
heRO Guardian
He is located at the entrance of the server, he will make sure you understand and agree to the rules of heRO.
Noobie Pack Lady
It's not easy starting as a newcommer, this is why this generous lady awaits you at training ground, she will give you some starting gears and a free warp to the starting city of your choice. *Limit of 3 noobie packs per account to prevent abuse.
Reset Master
Made a mistake in your stats or skills? Go see him for a reset.
Reset is free until base level 40! Make sure you know where you're going after that, otherwise it's gonna cost ya!
Healer
There is a healer located at strategic spots in most major cities. Talk to her to get fully healed hp/sp.
Healing is free until base level 20. After that there is a fee of course (based on your level). Price is doubled during WoE.
Warpers
These people are also located at strategic spots in cities and dongeons. Talk to the lady in red to unlock the warp (for a fee). Afterwards you can travel to any unlocked location for a small price of 200z per city and 500z per dongeon. You can also get a free warp to the RP tavern located in Prontera.
Miracle Man
This man in Aldebaran city can turn water into wine! (Or to be precise he will trade you 1 holy water + 800z into a grape juice)
Mining
See the mining guide:
http://pandoraonline.net/forum/showthread.php?tid=2065
Fishing
See the fishing guide:
http://pandoraonline.net/forum/showthread.php?tid=2077
PVP
Talk to her, she will tell you how many people are in each PVP room, and warp you there for free if it is your wish.
Banker
This gentlemen is located in most major cities, talk to him to store your money safely in the bank.