The arch-chancellor of the Wyrmfang magic academy is a tentative ally of the King, but always gets into a quarrel with him over the topic of magocracy vs. feudalism (don't seat them together).
Also, considering his temper, if you seat him next to any guest who happens to be both talkative and a fool, said guest will spend the rest of his life on a lily pad, munching flies.
comtessa Beatrix Beaufort
A socialite, sole heir to a fortune and provocatively independent, the young lady is a famous single and her suitors many. The reason why she's unmarried is that she's solely interested in ladyfolk.
She will be very pleased to be seated with ladies young, impressionable and charming - but if any of those ladies are married, their husbands will voice their displeasure at the many strange ideas the wife brought from your party.
Echo likes, Echo approves. The Scrasamax has been deployed, and exceeded expectations! Nay-sayer forces have been eliminated, the EchoMirage only took a minor hit in pride and saw a great increase in motivation.
All in all a 5 :)
Sole objection: why do you US guys have to place the bad guys in Russia these days? It's kind of lame.
As with Wrathbringer, I somewhat resent the mind control aspect. Corruption is so much sweeter if the mortal got to make all the wrong choices himself.
Usually, it will be sufficient to give a mortal that political acumen, let him know of the plans of the enemies, perhaps serve as a non-sentient depository of knowledge - that coupled with added charisma is usually enough to fuel pride. Once he has a few enemies, the paranoia also comes on its own.