I can't deal with close, not for Mordin. The original is irreplacable. Maybe for some nominal character like Hackett, as annoyed as I'd be with a change, I could probably deal with it. The original Mordin being replaced makes me want to kill him off. I won't go and alter the playthroughs I've already done, I'll keep him in those, but I hope to God he's not on your squad in this game. Seriously, I just cannot deal with re-casting. It's unbearable having to watch one character played by two different people in the same series, it breaks the logic of the game.