Welkin Gunther Dave Wittenberg
I can't believe I couldn't notice it until I looked it up but he also plays Mullen Shetland in Last Exile! For me that is pure win!
Isara Gunther Laura Bailey
One of the interesting characters she plays is Lust in Fullmetal Alchemist.
Alicia Melchiott Colleen O'Shaughnessey
Her most notable gig is Sora Takenouchi from the first two seasons of Digimon. She does a hell of a job as Alicia too.
Brigitte "Rosie" Stark Hedy Burress
She hasn't done much, but she has played Yuna in FFX. I liked he in VC though.
Largo Potter Fred Tatasciore
Not much to work on from here, but he was great in VC, that's for sure.
Zaka Steve Blum
Oh come on, now who doesn't know who Steve Blum is? He's such a champ! I mean, this is the guy who played Spike Spiegel in Cowboy Bebop, Vincent Alzei in Last Exile AND Mugen in Samurai Champloo!
Eleanor Varott Julia Fletcher
Not much to go on here...
Faldio Landzaat Robin Atkin Downes
He's been getting some great roles lately... I'm sure it has a lot to do with him playing Travis Touchdown in No More Heroes too.
Irene Ellet Kari Wahlgren
Another one of my favourites... she plays Lavie Head in Last Exile.
Cordelia gi Randgriz Kate Higgins
Eh, I'm sure others are interested in her...
Maximilian Matthew Yang King
He was brilliant as Maximilian...
Selvaria Bles April Stewart
Who? you ask... Cartman's mum... that's who... and many other female characters from South Park. Amazing isn't it... she's pretty damn good in VC as well.
Radi Yaeger Patrick Seitz
He's done quite a few animes, though most of them I haven't seen. He's pretty kickass either way.
Berthold Gregor Roger L. Jackson
He's been in quite a few videogames...
Maurits von Borg Dwight Schulz
If you don't know who he is there's something wrong with you
Additional voices
Candy Milo
Chris Edgerly
Cindy Robinson
Daniel Sexton
Grey Delisle
Jack Fletcher
Kathryn Feller
Liam O' Brien
Massasa Moyo
Megan Hollingshead
Nolan North
Quinton Flynn
Roger Craig Smith
There are a lot more characters than that, I know, but that's all I can list so far.