1) Combeferre for as long as I've been a Les Mis fan.
2) Feuilly a little more recently.
3)Jehan Prouvaire even more recently.
4)Doctor Watson for as long as Combeferre.
5)Rodion Romanovitch Raskolnikov which is awful because he a neurotic axe murderer with delusions of grandeur.
And those are the ones I can think of off the top of my head right now, though I'm sure I'll come back with more.