I just ran through the Doctor encounter in a separate save file with 2 generics (custom avatar and merc)

when you talk to him, he first addresses you as Fane, and then he calls you Lohse twice. I'm willing to bet all of the flags/triggers around the Doctor are seriously messed up, and that's gotta be somehow influencing this quest, too.

A friend confirmed the same thing happened to him. His party was Fane, Ibn, Beast and Sebi