Re: DS9 ruined Alexander Rozhenko
I think it would be out of character for him to stay in the Klingon army, but I do buy him joining during the Dominion War. His people, both of them, being in extreme danger overrules his human side and he joins the army to fight the Dominion and bring honour to his name.
And I'd like to think he was eventually successful in that, maybe not being thought of by other Klingons as a great typical Klingon warrior, but respecting him in his own right. I'm actually thinking of writing some fanfic along those lines.
"Quite possibly, the five Jem'Hadar could turn Data into a collection of four spasming limbs, one helpless torso, and one head that shouts insults at them like the Black Knight from the Monty Python sketch." -Timo Saloniemi