Yuka Iguchi is a seiyuu born in 1988, from Tokyo. She had her first major role in Di Gi Charat, and her first starring role was in Idolmaster: Xenoglossia, but has recently gained popularity as the titular Index. She doesn't really have a character type pinned down yet, but many of them seem to be temperamental. She hosted a radio show a while back entitled Yuka Iguchi no Cho Raji! Girls, and recently started up a new one called Iguchi Yuka no MuGethbot (talk)n ⊂（ ＾ω＾）⊃.
Lately, she's had a bit of a relationship with Rina Sato (in Ro-Kyu-Bu!, To Aru Majutsu no Index, Mayoi Neko Overrun, and Nyan Koi), Mamiko Noto (Aoi Hana, Bokurano, To Aru Majutsu no Index, Zero no Tsukaima, Idolmaster: Xenoglossia, Nogizaka Haruka no Himitsu, and Ro-Kyu-Bu!), and Kana Asumi (To Aru Majutsu no Index, Tamayura, Bokurano, Cubex Cursedx Curious, Mayo Chiki, Ano Natsu de Matteru, and Sekirei). (The latter is apparently good friends with her in real life.)
- Mimi Houllier von Schwarzlang in Atelier Totori
- Tsukihi Araragi in Bakemonogatari
- Mako Nakarai in Bokurano
- Maria Takayama in Boku wa Tomodachi ga Sukunai
- Shiraho Sovereignty in Cubex Cursedx Curious
- Yashiro Hoshimiya in Denpa Onna to Seishun Otoko
- Akari Usada in Di Gi Charat Nyo
- Sherry Blendi in Fairy Tail
- Enri in Fractale
- Kelsey in Galaxy Angel II
- Yuuko Hattori/Yuri Hoshino in Ichiban Ushiro no Dai Maou
- Haruka Amami in Idolmaster: Xenoglossia
- Naeka Fujiwara in Kamen no Maid Guy
- Subaru Konoe in Mayo Chiki
- Chise Umenomori in Mayoi Neko Overrun!
- Shiori Itou in Mitsudomoe
- Kaede Mizuno in Nyan Koi!
- Sakura in Otome Youkai Zakuro
- Maho Misawa in Ro Kyu Bu
- Oriha in Sekirei
- Miku Konohita in Senki Zesshou Symphogear
- Karin Ishida in Shangri-La
- Norie Okazaki in Tamayura
- Index in To Aru Majutsu no Index
- Fumiko Yanagi in Tokimeki Memorial 4
- Sakura Shinjou in Tokimeki Memorial ~Only Love~
- Claire Brant in Trauma Team
- Aiko Andou in True Tears
- Irukuku in Zero no Tsukaima
Tropes associated with her include:
- The Prankster: She's admitted to being this herself, and has done things like poke Kana Asumi in the butt while recording for Tamayura, especially when they're not supposed to be making noise whatsoever.