Echoing the sentiment of Nozawa as Black being stellar. Just, wow, she sounds so amazing like that...reminds me of her Burdock voice, which I always found sexy.
Mitsuo Iwata as Champa was really a treat. The way he switched between smug asshole to whiny brat was fun to listen to, and a great match for Kouichi Yamadera's serious/silly Beerus. And both attendants are superb, as well (Masakazu Morita cracks me up whenever he's doing any "alien language" stuff with Whis).
I know many people are annoyed by the Pilaf Gang's presence, but at the very least, Shigeru Chiba is hilarious to listen to, even if the humor itself doesn't always hit.
Takeshi Kusao as double Trunks is giving it his all. Future Trunks is a bit subdued, perhaps, but his kid Trunks has been really great ever since Kai (I think I said back when Boo Kai was airing that I liked it even more than his Z performance).
Shit, I think what I'm saying is I love pretty much everyone

And I'm highly anticipating one of my all-time favorites, Shinichirou Miki, joining the cast.