Ishy

[Ekho 52]

I don't think Ishamael was a general for the light, he was a philosopher before he turned to the shadow

[Sivart Reborn 7]

I don't remember if this is correct, but didn't Ishy publicly announce his alignment to the Dark and kinda set off the War of Power by doing that?

Edit: That would kinda make 'fighting for Light' invalid. Anyway, I do remember he came to the conclusion the Dark would win eventually in some philosphical reasoning that I don't even think White Blacks can puzzle out in the Tower.

[Brynefan 2]

Ishamael's life is rather unique, so there's no way to tell if he's particularly insane or if anybody would act as he does in the same situation. I think that he handles it quite well. He lets out his frustration on rats instead of ruining his plans. That's smart.

 

Lanfear is insane, for a good reason. She does things for her own good instead of thinking about the consequences.