Originally Posted by
Heliolord
Major Class Characters:
Shaman: Thrall, Nobundo
Death Knight: Darion, Thassarian, Koltira Deathweaver (though he's been missing since Cataclysm and we haven't really heard of much DK activity since Northrend and the battles at the Western Plaguelands).
Druid: Malfurion, Hamuul
Warrior: Varian, Garrosh, among others
Paladin: Uther, Liadrin, Fordragon, Fordring, among others
Hunter: Tyrathen Khort (a major character from Shadows of the Horde), Rexxar, Sylvannas?, Tyrande?
Monk: Ji Firepaw, Aysa Cloudsinger
Priest: Anduin, Velen, Tyrande ... I can't think of a Horde representative.
Rogue: Matthias Shaw, Valeera, Garona
Mage: Jaina, Aethas Sunreaver, Rommath
Warlock: ... the guys in our starting areas/class trainers?, maybe the other members of the Black Harvest--but we haven't seen anything of them and don't know much about them. Aside from Death Knights and Warlocks, all the other classes have at least some significant represented lore figures on each side which have at least gotten some mention in novels/stories or played a role at some point in game.