Yes, when I have spoken with therapists they typically use one of two terms: Antisocial Personality Disorder or Narcissistic Personality Disorder. However it's pretty clear to me that neither of those fit because they seem to present without the manipulative behavior.
You are correct though that the term psychopath isn't medical but rather criminal focused.
It was my understanding that schizoid was more along the line of schizophrenia and schizotypal was along the lines of borderline but I am not as familiar with those. I'll look into that, thanks.