I'm a director and a professor of acting, improv, and characterization at a strong BFA program, so I'm mentor to quite a few very talented young actors. Recording several voice actors in the same session would have the beneficial effect of loosening them up, helping them have fun with it, making them sound spontaneous and social, as opposed to stilted and sitting in a closet. Also, they'd have the benefit of my presence as their teacher/director -- having played all the Elder Scrolls games (as well as being a fan of Fallout, Bioshock, etc.) I think I can help them understand the appropriate style/energy. Finally, I could certainly recruit multiple female actors, which I assume would be in higher demand.
Would the team be interested in a bundle of submissions like that? Are there appropriate 'smaller' roles that we could take a swing at in one session? Then you could cherry-pick what you want. We'd do our best, but I'd have no ultimate personal stake in whether our submissions are used or not -- I see it as a fun afternoon and a good teaching opportunity for some of my strong character actors.
Either way: cheers, and best of luck on the project! Can't wait to pour some hours into the result one day.