I feel like talking about these two.
[SIZE="5"]6. Asumi Kana (阿澄佳奈)[/SIZE]
Asumi Kana is pretty new, but it wasn't long until she got her first major role as Yuno in Hidamari Sketch in 2007. But while her role as ( X ╹ ‿ ╹ ) is super popular, she hasn't really done anything more major than some supporting characters. Her voice is pretty distinct, to the point where me and my friend burst out laughing when her character said "TAKANASHI-SAN" in Black Rock Shooter because it sounded
exactly like her "KATANASHI-KUN" in Working!.
Major RolesHidamari Sketch (x365, Hoshimittsu) (2007–2010), Yuno
Tengen Toppa Gurren Lagann (2007), Kiyal
Bokurano (2007), Kana Ushiro
Shugo Chara! (2007), Ran
Working!! (2010), Taneshima Popura
Amagami SS (2010), Miya
Black Rock Shooter (2010), Yuu/STRength
[SIZE="5"]7. Ueda Kana (植田佳奈)[/SIZE]
Ueda Kana's voice is also distinct, but, unlike Asami Kana, she seems to be capable of changing her voice. Of particular note is her apparently strong Kansai accent, which I can't really pick out, but I'm sure people more familiar with some form of Japanese would be able to. It's most noticeable when when she's Sakuya in Hayate the Combat Butler, simply by virtue of her character being from Kansai.
She's had a slower popularity curve than Asami Kana, having several years of odd roles before getting her major breakout roles. But between the Nanoha A's and the Fate/stay night crowds, I think she has a pretty sizeable fanbase now.
Major RolesMagical Girl Lyrical Nanoha A's (Hayate Yagami)
Pani Poni Dash! (Kurumi Momose)
Fate/Stay Night (Rin Tohsaka)
Hayate the Combat Butler (Sakuya Aizawa)
Tengen Toppa Gurren Lagann (Kinon Bachika)
Shigofumi: Letters from the Departed (Fumika)
Saki (Saki Miyanaga)