I rlly loved reading this thread so here is my list
The first person that comes to mind:
The Fallen Shadow - the guy who made me play Regnum
Who made me want to join T-A-G, which was, imo, the best thing that happend to me in RO
He thought me how to play, which keys to use and he made me want to grind to catch up to him
Nyxx - a conjurer from alsius, i think she was still low lvl but she was helping
me in inner with my 1001 questions (before I joined TAG) and showing me around monts
(such a confusing town when you first enter it :s)
Nexiom - for being my friend and grindpartner, and our struggle to reach lv50 before the other
even though i won that time he kept going and made lv60 way before me
Ruthless Beast - he is funny, supportive and he doesnt know what sound a chicken makes ^^
He thought me that friends are the most important thing in the game
Femhero - a dutchie with awesome humor who knows tons of stuff about other players
Snyder (Gurgel) - for teaching me the basics of conjuring
Crystallshow & Sathius - they always look after me when RL gets tough
or RO is a mess and I take it way to serious. They must have pulled me up tons of times
Tania - passivly teaching me so much about all the other classes
always ready to help when a pendy needed to get killed or when you needed a great grind setup
Beralor - he saved me from lonelyness more than once
always eager to give a hand and a great guy to talk to
Red & Aniara - Red tought me the basics of warju and ani went with me
on many funny hunts, where we both ended up dead more than planned
still the warju hunts are the best yet
Gioakkin, Fry (purple), Seth & Ultimate Hero - awesome friends who are always up
for a hunt, a joke or two and who are pretty crazy when you think about it
Yuul (ifail) - coz he is crazy ^^
And last but not least, everyone from T-A-G and FIST, because they are awesome,
always friendly (to me) and thought me many things