[4] In 2019, he starred as Junichi Wakamiya, the Japanese version of Dr. Watson, in Fuji TV's drama Sherlock: Untold Stories.

He was admitted to Keio Senior High School subsequently, and began to play Lacrosse as an extra-curricular activity.

He chose Lacrosse because it is only available as an extra-curricular activity for high school or higher education, so he thought he could have what it took to play on the same level as everyone else.

[21] Despite the objection of his parents, Iwata declined the job offer he previously got from a big company and pursued a career in the world of entertainment instead.

Starring alongside Exile Tribe's members Takahiro, Sho Aoyagi, Shuhei Nogae, Masayasu Yagi, Taiki Sato, and Keiji Kuroki, he played Harutaro Saeki("Choko"), a former bad boy and a handsome Karaoke manager who was loved by all older women in town in Wild Heroes.

[4] On 15 October, Iwata teamed up with Sandaime J Soul Brothers' vocalist Hiroomi Tosaka and performer Naoki Kobayashi to form dance and vocal group The Sharehappi from Sandaime J Soul Brothers from Exile Tribe, and released their one and only single, Share The Love, which is a theme song used in the advertisement for Pocky.

[37][38] In 2016, Iwata appeared opposite Mitsuki Takahata in the romance film Shokubutsu Zukan ("Evergreen Love").

As the mysterious herbs lover Itsuki, he fell in love with Mitsuki Takahata 's character Sayaka, an office girl.

[43][44] He also appeared in the TBS's TV drama Suna no Tou ("Tower of Sand") as Kohei Ubukata, the childhood friend of heroin Aki.

[45] In 2017, Iwata got a lead role in Fate Detector, one of the four mystery stories of Yo Nimo kimyô na Monogatari: Autumn 2017 Special.

[47] (Cinema Fighters is a joint project by Exile Hiro, Tetsuya Bessho, who is the representative director of SSFF & ASIA, and lyricist Masato Odake.[48]).

He also starred in the film Kyonen no Fuyu, Kimi to Wakare ("Last Winter We Parted") as Kyosuke Yakumo, the freelance writer looking for the truth behind a burned to death murder case involving a beautiful blind woman.

The romance was based on the manga of the same title by Rie Aruga, which depicted a love story between office girl Tsugumi Kawana and her disable lover, Itsuki Ayukawa, who was bound to the wheelchair after an accident.

[53][54] At the end of the year, he appeared as Akira Baba in TV special Enjo Bengonin ("Attorney for the Flamed") alongside Yôko Maki and Riisa Naka.

[62] The story was about a Sherlock Holmes based in modern Tokyo, and Iwata portrayed Junichi Wakamiya, a psychiatrist and the Japanese version of Dr. Watson.

[65] He also appeared in Shinji Aoyama's Living in the Sky, in which he played actor Morinori Tokito, who started a relationship with the heroin.

Gun-chan: Takanori Iwata's Counseling Room" on the magazine to answer all kinds of questions from readers.

[68] He also made a guest appearance in crime drama Cold Case: Shinjitsu no Tobira's third season alongside Kasumi Arimura as Kouharu Shiromoto, the head of publicity who supports the famous actress Misa Takifune behind the scenes.

[73][74] On the same day, the spin-off drama Re: The End of the Nameless World ~Half a Year Later was broadcast on Japanese streaming service platform dTV.