Does non-ordinary mean charismatic? And vice versa, does ordinary mean un-charismatic?
Does being aristocratic make one un-ordinary?
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I think there should have been something special (in terms of screen presence) in at least all the wizards (obviously), Aragorn (again, obviously, the last heir of the true Númenórean kings), the High Elven lords and ladies (again, obviously) and Frodo (his striking elvishness).
As to charismatic actors, I think also Boromir, Théoden, Faramir, Éowyn, Denethor and the likes should have had one. (Well Sean Bean didn't lack charisma, nor did Bernard Hill either.) The characters mentioned above were all great leaders (well maybe Éowyn not that much) and clearly great and inspiring personalities.