Sorry, thought must people would have played or at least known something about the game.
Well... of human characters (potential PCs and supporting characters) i would think that the templars and most people from the Chantry have the look that would be harder to replicate with other minis. There are looots of very unique monsters, specially amount the ranks of the darkspawn. I'll link everything bellow, will post everything bellow, sorry for the VERY HEAVY post:
Templar
Members of the chantry
(Both the womans in the picture are dressed in robes of the Chantry)
(The man on robes. The one in armor is a templar)
Genlock
Hurlock
Ogre
Shriek
Mabari Hound