Herpderp. I don't really know many but I'll give some xD
Ritsu Namine (If you count him)
Victor Yonne
Tony Yonne
and I guess if you'd count female CVVC UTAU with a g+25 flag that could be male CVVC English UTAU. xP
And also I think Sango might be working on an English capable UTAU from her brother. Whether it's CV-VC or not I do not know, hope I could be of some help P: