Male
1. Takahiro Sakurai (1974-06-13)
2. Daisuke Ono (1978-05-04)
3. Tomokazu Sugita ( 1980-10-11)
4. Tetsuya Kakihara (1982-12-24)
5. KENN (1982-03-24)
6. Hiroshi Kamiya (1975-01-28)
7. Jun Fukuyama ( 1978-11-26)
8. Kenichi Suzumura (1974-09-12)
9. Hiroyuki Yoshino (1974-02-06)
10. Daisuke Namikawa (1976-04-02)
11. Wataru Hatano
12. Showtaro Morikubo
13. Hiroki Takahashi
14. Hiroki Yasumoto
15. Jun Fukuyama (it's ambiguous in English, but 7 is Black Butler's Grell/DRRR's Shinra and 15 is Code Geass' Lelouch)
16. Yuuki Tai
Female
1. Nana Mizuki (1980-01-21)
2. Yui Horie (1976-09-20)
3. Houko Kuwashima (1975-12-12)
4. Mamiko Noto (1980-02-06)
5. Hekiru Shiina (1974-03-12)
6. Yukari Tamura (1976-02-27)
7. Mai Nakahara (1981-02-23)
8. Ryoko Shintani (1981-03-31)
9. Kana Ueda (1980-06-09)
10. Ryoko Shiraishi (1982-09-07)
11. Shizuka Itou
12. Mai Kadowaki
13. Ai Nonaka
14. Aya Endo
15. Yu Kobayashi
16. Megumi Toyoguchi
17. Fumiko Orikasa
18. Haruna Ikezawa
19. Ai Shimizu
20. Rie Kugimiya
21. Tomoko Kaneda
22. Harumi Sakurai
23. Miyu Matsuki
24. Mikako Takahashi
Source:http://www.crunchyroll.com/anime-news/2013/05/04-1/fans-name-the-most-attractive-male-and-female-voice-actors-in-their-30s
http://anime.biglobe.ne.jp/userranking/cast/41811/
http://anime.biglobe.ne.jp/userranking/cast/41810/