English-language VAs being properly credited in the custom character builder? That's rare, indeed.
The "Classic" voices are Adam Howden and Carina Reeves, who are Shulk and Fiora in Xenoblade. Fittingly named.
All in all, those are solid voice actor cast for the custom character. Seem they got more American VAs than British, which also makes sense given New LA.
With Lin bring voiced by Cassandra Lee and Bryce Papenbrook and Erin Fitzgerald being choices for the avatar, that's almost the entire voice cast for the party in Bravely Default. Respectively, they are Edea, Tiz and Agnès.