In my head canon? THIS IS XFMC’s Emma Frost. Yeah, I know, people will say/think she would’ve been too old for the part (being a decade older than JM/MF/JJ) but I still think she would’ve rocked the part and been a much better consort for Kevin Bacon’s Sebastian Shaw.
And, unlike JJ, I know that Jeri Ryan can rock out being a frigid bitch in a way you can like even if she’s working from a terrible script / part. (I’m looking at you, VOY writers.)
(Or, as PookaSeraph referred to it when I told her, ‘Seven of Frost.’ XD)