Sayaka Yamaguchi (山口 紗弥加, Yamaguchi Sayaka, born 14 February 1980 in Fukuoka Prefecture) is a Japanese actress.
Rebirth of Mothra (1996), LoraTokimeki Memorial (1997), Mishio YokoyamaRebirth of Mothra II (1997), LoraRebirth of Mothra III (1998), narration onlyTomie: Replay (2000), Yumi MoritaKenchō no Hoshi (2006), Mika TahataGigolo Wannabe (2006)Cheke Raccho!! (2006), Mina HaebaruNonchan Noriben (2009), Reika TamagawaNodame Cantabile Saishū Gakushō Zenpen (2009), Yūko NamikiNodame Cantabile Saishū Gakushō Kouhen (2010), Yūko NamikiSoftboy (2010)Rāmen Samurai (2011)Soup: Umare Kawari no Monogatari (2012)Flare (2014)April Fools (2015), Eriko EtōWakamono no Subete (Fuji TV, 1994)Oishī Kankei (Fuji TV, 1996), Yumi MoriPurple Eyes in the Dark (TV Asahi, 1997), Maiko OzakiFutari: Wherever You Are (TV Asahi, 1997)Kōritsuku Natsu (YTV, 1998), Eriko OikawaKawaī Dakeja Dame Kashira? (TV Asahi, 1999), Setsuko TaniguchiGekka no Kishi (TV Asahi, 2000), Mayumi TachiharaHanamura Daisuke (KTV, 2000)Koi Suru Top Lady (KTV, 2002), MariMy Little Chef Episode 4 (TBS, 2002), Aki EjimaEngimono Machine Nikki (Fuji TV, 2003), SachikoBoku to Kanojo to Kanojo no Ikiru Michi (KTV, 2004), Mami TsuboiWater Boys 2 (Fuji TV, 2004), Natsuko ŌharaWakaba (NHK, 2005), Aki FujikuraAnego (NTV, 2005), Kana SaotomeShimokita Sundays (TV Asahi, 2006), Akiko Emoto14-sai no Haha (NTV, 2006), Kōko EndōKekkon Hirōen: Jinsei Saiaku no 3-jikan (Fuji TV, 2007), Yukari SawaguchiKonshū Tsuma ga Uwaki Shimasu Episode 7 (Fuji TV, 2007), Mai MizusawaAbarenbō Mama (Fuji TV, 2007), Yae KominamiKimi Hannin Janai Yone? Episode 4 (TV Asahi, 2008), Risa KamogawaYasuko to Kenji (NTV, 2008), Kaori MiyazonoShōni Kyūmei (TV Asahi, 2008), Rui HiguchiAkai Ito (Fuji TV, 2008), Machiko IshikawaKonkatsu! Episode 3 (Fuji TV, 2009), Anri KanekoZettai Reido: Mikaiketsu Jiken Tokumei Sōsa (Fuji TV, 2010), Ryōko TakamineŌgon no Buta: Kaikei Kensachō Tokubetsu Chōsaka (NTV, 2010), Mizore TsutsumiZettai Reido: Tokushu Hanzai Sennyū Sōsa (Fuji TV, 2011), Ryōko TakamineHunter: Sono Onnatachi, Shōkin Kasegi (KTV, 2011), Akane IsakaHayami-san to Yobareru Hi (Fuji TV, 2012), Aki IrieToshi Densetsu no Onna Episode 5 (TV Asahi, 2012), Sakura ŌkusuTokyo Airport: Tokyo Kūkō Kansei Hoanbu (Fuji TV, 2012), Reiko JōnouchiGalileo Season 2 (Fuji TV, 2013), Harumi WakayamaAndō Lloyd: A.I. knows Love? (TBS, 2013), Sakiko KomatsuSilent Poor (NHK, 2014), Junko MizusawaKazoku Gari (TBS, 2014), Miho KiyookaKindaichi Kōsuke vs Akechi Kogorō Futatabi (Fuji TV, 2014)Binta!: Bengoshi Jimuin Minowa ga Ai de Kaiketsu Shimasu (YTV, 2014), Natsumi TakadaRenzoku Drama W Episode 47 "Scapegoat" (WOWOW, 2015), Tsukasa MatsumotoYōkoso, Wagaya e (Fuji TV, 2015), Setsuko NishizawaYamegoku: Yakuza Yamete Itadakimasu (TBS, 2015), Shōko AridomeRisk no Kamisama (Fuji TV, 2015), Yuka TachibanaKōnodori (TBS, 2015), Megumi AraiOnna jōshu Naotora (NHK, 2017), NatsuByplayers (TV Tokyo, 2017) – HerselfRomantic (Pioneer LDC, 26 May 1999)Baby Moon (Pioneer LDC, 24 June 1998)Little Wing (Pioneer LDC, 28 October 1998)Akai Hana: Missing You (Pioneer LDC, 16 December 1998)April Fool (Pioneer LDC, 28 April 1999)100%Love (Pioneer LDC, 24 May 2000)Toy Ring: Love Me 100%! (Antinos Records, 7 March 2001)