Re: councilors.
Ianto Jones: practically ran Torchwood, "which if you've seen the show is a little bit like herding cats". Very used to dealing with sudden weirdness, problem solving, and talking to the public often in very stressful situations.
Sandrilene fa Toren: She knows she's young, but she had her mage credentials at 14 and since around then she's been helping her uncle run his duchy as one of his advisors. To become an accredited mage your maturity is as important as your skill and she's been navigating court politics for much of her life meaning her diplomacy skills are pretty good.