Any chance that Riot will let us know who voices our favorite champions?

..... and by favorite I mean every single one of them .....

.... particularly Nasus.

EDIT: i'll make my own list then:
Richard Steven Horvitz - Rumble (http://en.wikipedia.org/wiki/Richard_Steven_Horvitz)
Kyle Herbert - Ezrael (http://en.wikipedia.org/wiki/Kyle_Hebert)
Keith Silverstein - Shen (http://en.wikipedia.org/wiki/Keith_Silverstein)
Jamieson Price - Garen (http://en.wikipedia.org/wiki/Jamieson_Price)
David Wenham - Lee Sin (http://en.wikipedia.org/wiki/David_Wenham)
Michael Bell - Xin Zhao (http://en.wikipedia.org/wiki/Michael_Bell_(actor))
Cristina Valenzuela - Riven (http://en.wikipedia.org/wiki/Cristina_Valenzuela)
Erin Fitzgerald - Sona (http://en.wikipedia.org/wiki/Erin_Fitzgerald)
Erin Fitzgerald - Janna (http://en.wikipedia.org/wiki/Erin_Fitzgerald)
Barbara Kałużna - Poppy (http://pl.wikipedia.org/wiki/Barbara_Ka%C5%82u%C5%BCna)
Barbara Kałużna - Sivir (http://pl.wikipedia.org/wiki/Barbara_Ka%C5%82u%C5%BCna)
J.S. Gilbert - Sion (confirmed by Adam Harrington)
Adam Harrington - Ryze (http://www.youtube.com/watch?v=7R29ye4-jzI & http://www.bobcroquet.com/AdamHarrington/bio.htm)
Adam Harrington - Karthus (http://www.youtube.com/watch?v=7R29ye4-jzI & http://www.bobcroquet.com/AdamHarrington/bio.htm
Adam Harrington - Shaco, (http://www.youtube.com/watch?v=7R29ye4-jzI & http://www.bobcroquet.com/AdamHarrington/bio.htm)
Adam Harrington - Mordekaiser (http://www.youtube.com/watch?v=7R29ye4-jzI & http://www.bobcroquet.com/AdamHarrington/bio.htm)
Adam Harrington - Kassadin. (http://www.youtube.com/watch?v=7R29ye4-jzI & http://www.bobcroquet.com/AdamHarrington/bio.htm)
Dennis Collins Johnson - Taric (http://denniscollinsjohnson.com/)
Dennis Collins Johnson- Heimerdinger (http://denniscollinsjohnson.com/)
Dennis Collins Johnson - Gangplank (http://denniscollinsjohnson.com/)
Danielle McRae - Karma (http://www.voices.com/people/fairuza - http://www.daniellemcraevo.com/#!credits)

Unconfirmed
Kyle Herbert - Jarvan IV (http://en.wikipedia.org/wiki/Kyle_Hebert)
Justin Gross - Jarvan IV (http://en.wikipedia.org/wiki/Justin_Gross)
Michael Bell - Vladimir (http://en.wikipedia.org/wiki/Michael_Bell_(actor))
Kevin M Connolly - Vladimir (http://en.wikipedia.org/wiki/Kevin_M._Connolly)

This is cool, I've always wondered if the voices were done in house or what. Cheers for putting this together!

nice, i didn't know that ezreal and ryu hoshi were voiced by the same person. thanks for making this list.

And there I go thinking that taric was voiced by bob ross

I want to know as well.
Mainly because of how Skarner's selection quote sounds like Gerard Butler and the way they say "death" in Skarner's selection quote and Butler's quote in "300" before he kicks the Persian messenger into the well.

Iunno, maybe its just me. :/

I really, really, REALLY don't wanna bring the bad news, but I think some of your links are for the non-English voice overs. =/

Also...Kate Higgins = Morgana?

Ezreal is voiced by Justin Cook, is he not? I remembered this because I always remembered that it was the same guy who voiced Raditz in Dragon Ball Z. Plus he sounds exactly like some of the people Justin Cook has voiced.

Apparently: Zim=Rumble(?)