While I haven't yet voiced my characters myself, I have compiled youtube videos of other voice clips into playlists to try and approximate the sound of their voices.

[url=http://www.youtube.com/watch?v=5_yRhTGPGiY&list=PL48489043F37F2950]Andion's Voice[/url]
[url=http://www.youtube.com/watch?v=O0e1cD7DJ54&list=PLozlv-5CA915_ZuaIr7QoWU1tDqqV0ZK6]Xukhezur's Voice[/url]
[url=http://www.youtube.com/watch?v=mFBeD8WvXm0&list=PLozlv-5CA917Xjad-fspjqdCGCR3T74pD]Inkling's Voice[/url]
[url=http://www.youtube.com/watch?v=6i8a7DD-9gg&list=PLozlv-5CA917aetoQzwpWb8rFtg1LOcWm]Jorrad's Voice[/url]