Haruna Kawaguchi

In 2007 Kawaguchi won the Grand Prix at the 11th Nicola audition. After joining the child division of Ken-On, she made her debut in the October 2007 issue of Nicola released on September 1 of that year.

From October 4, 2008, to March 28, 2008, she became a regular in the girls' corner on the variety show Fightension☆TV, her first television show. She also performed in the music group merry merry boo in March 2009 when she covered "Ima Sugu Kiss Me", originally by LINDBERG, as part of Fightension☆TV.

In spring 2009, Kawaguchi was selected as the 13th Rehouse Girl of Mitsui's Rehouse. On March 1, she moved from the children's division of Ken-On to Ken-On. Her diary "Haru na Hiyori" on the Ken-On mobile phone website. Her official website was launched in late March. On July 9, 2009, she made her first appearance in a music video with Shunsuke Nakamura for Hi-Fi Camp "Dakara Ippo Mae e Fumidashite" which was used as the commercial song for Pocari Sweat "Unmei no Natsu-hen (Summer Edition of Fate)". In early August, she toured 12 cities across Japan at the event "Pocari Sweat o Nonde Kawaguchi Haruna・Hi-Fi Camp ni Aou! (Let's drink Pocari Sweat and Meet Haruna Kawaguchi and Hi-Fi Camp!)". In October 2009, she made her debut as an actress in the Fuji TV drama Tokyo Dogs.

On March 13, 2010, she had her first lead role in the P&G Pantene drama special Hatsukoi Chronicle. On June 7, 2010, she became the second support girl for Senkou Riot and served as a support girl at "Senkou Riot 2010" held on August 1, 2010. From July 30 to September 2010, she appeared in au LISMO's commercials for LISMO Fes! This commercial was selected for the 2010 CM Grand Prize in the magazine CM NOW. On November 2, she was selected as "Face of the Year" by Nikkei Trendy.

In 2011 she graduated from Nicola and stated that "from now on, I will focus on acting." She has been active as a model since then and has been featured on the covers of magazines like JJ and VOCE; she has also worked on fashion features. In July 2011, she starred in a serial drama for the first time with Ouran High School Host Club which was broadcast in the TSB drama slot "Friday Break". In November 2011, she became the seventh support manager (image girl) for the 90th National High School Soccer Championship.

On March 17, 2012, she starred in the movie Ouran High School Host Club. She released her first photo book "haruna" on March 20, which was shot on Ishigaki Island, her hometown of Goto Islands, and Fukue Island. In 2012 she placed first in MyNavi's "(Men's Edition) Who will be next year's star? Ranking of rookie actresses who will have their big break soon".

On March 24, 2013, she released her second photobook haruna2.

In October 2013, she starred in TBS's Thursday drama Otto no Kanojo (Husband's Girlfriend). It was her first starring role in a prime-time soap opera.

In 2013, she starred in the movie adaptation of "Real Escape Game" which was also made into a drama Madam Marmalade no Ijō na Nazo. It was released as a mystery solving movie with audience participation called "Nazoto Kinema" which was divided into "questions" (October 25) and "answers" (November 22).

In October 2014, she starred in her first tage performance at Aoyama Amphitheater "Ikiterumono wa Inainoka".

On February 10, 2015, she released her third photobook haruna3.

In 2020, she played Kicho (Nohime) in the NHK Taiga drama "Awaiting Kirin" due to the previous actress, Erika Sawajiri, dropping out due to being arrest on suspicion of violating the Narcotics Control Law before the start of broadcasting. This was her first period drama and her first appearance in a Taiga drama. Filming began on December 3 and the broadcast started on January 19, 2020, two weeks behind the originally scheduled January 5, 2020.

On January 31, 2020, she opened her official YouTube channel "Haachannel". The number of channel subscribers exceeded 700 thousand in the first month after opening. She continues to update by posting new videos almost every Sunday. She was adopted as a regular model for the magazine GINGER starting from the May 2020 issue.

On December 31, 2021, she was one of the hosts for the 72nd NHK Kōhaku Uta Gassen with Yo Oizumi and Mayuko Wakuda. Up until the previous year, hosts had been divided into red, white, and neutral, but they were unified as neutral.

In February 2022, she won the Élan d'or Award for Newcomer of the Year, presented to the most promising new actor through the year.

In the first half of 2022, she appeared as the heroine's older sister Ryoko in the NHK serial TV novel Chimudondon, marking her first appearance in a morning drama. In the second half of 2022, the NHK serial TV novel "Maiagare!", which is set in the Goto Islands, her hometown, aired, so she narrated in a related program.

On December 15, 2023, Kawaguchi was appointed as the official ambassador for the Persona video game series.