Nattawat Jirochtikul
Nattawat Jirochtikul, nicknamed Fourth, is a Thai actor under GMMTV and a singer signed to Riser Music. He began his career after winning the talent competition Thailand School Star 2019. In 2021, he made his acting debut as Glakao in F4 Thailand: Boys Over Flowers, the Thai adaptation of the Japanese manga series Boys Over Flowers. He rose to prominence for his lead role as Gun in the popular television series My School President and as Li Ming in Moonlight Chicken.
Early life and education
Nattawat was born on 18 October 2004 in Bangkok, Thailand. He was nicknamed Fourth as he was born on King Rama IV's 200th birthday and because he is considered by his mother to be her fourth child, having experienced loss from her three previous pregnancies. He is the eldest child and has one younger sister. His father was of Thai Chinese descent. His mother, known as Mae Pui, is from the Isan province of Sakon Nakhon.Fourth shared that his mother wanted him to become a star ever since he was a child. As far as he could remember, she would take him to auditions since kindergarten, but he often missed out due to being camera shy. He aspired to work in the entertainment industry because he dreamed of being able to take care of his family.
Fourth was actively involved in school when he attended Saint Gabriel's College, participating in many different extracurricular activities, including having been captain of his school's football team. Fourth shared that his father used to take him to play the sport since he was in kindergarten. He also performed in the school stage play called : The Musical.
He graduated from Saint Gabriel's College early by taking the grade twelve equivalency test when he was in the tenth grade. He then took time off from his studies to focus on his career. He later enrolled in university around the same time as his peers.
He is currently pursuing an international program, Bachelor of Laws, experiential learning in Business and Technology Law at Chulalongkorn University.
Career
2019–2021: Career beginnings
At the age of fourteen, Fourth participated in Smart Boy 2019, a modelling contest hosted in conjunction with Thai Supermodel Contest 2019 by Channel 7 HD. He was scouted for his first commercial gig for the telecom company DTAC.At the age of fifteen, Fourth joined GMMTV's reality contest Thailand School Star 2019. During the talent show, he performed a Muay Thai dance, highlighting his athleticism. He also met Gemini Norawit Titicharoenrak, who would become his future acting partner. Fourth and Earn Preeyaphat Lorsuwansiri were chosen as the winners, both signing an exclusive contract with GMMTV.
Fourth made his television debut in the role of Glakao Jundee, the younger brother of Gorya, played by Tontawan Tantivejakul, in F4 Thailand: Boys Over Flowers.
2022–2023: Breakthrough with ''My School President'' and ''Moonlight Chicken''
Fourth starred in his first lead role in the boys' love series My School President, as Gun, who is the leader of his high school music club and the love interest of the student council president, Tinn, played by Gemini. The show takes a musical approach by incorporating songs performed by the cast into the storytelling. Fourth began taking singing lessons for his role, sharing that he went from being shy and feeling awkward singing in front of a crowd, to enjoying performing and singing along with fans. Fourth later reprised his role as Gun in May 2023 in two episodes of the anthology series Our Skyy 2.While My School President was still ongoing, Moonlight Chicken aired in early 2023, where Fourth played Li Ming, the nephew of Uncle Jim and the love interest of Heart, also played by Gemini.
The explosive popularity of My School President and Moonlight Chicken propelled Gemini and Fourth to significant fame and the duo quickly became popular as "GeminiFourth". Their fandom was given the name "Khunnoo", a title used to address a 'young master', heard in episode 4 of My School President. The cast of My School President went on to perform live on stage and met fans across Asia. Gemini and Fourth also gained recognition for their roles, receiving awards such as Popular Couple Artists at the Golden Kinnaree Awards, Hottest Artist Award at the Kazz Awards, Breakthrough Actors from GQ Men of the Year 2023, and Thai Best Artist at the 33rd Seoul Music Awards.
In March 2023, following the success of My School President, Gemini and Fourth went on to further establish themselves as artists with the release of their single "เขินให้หน่อย ", a city pop track co-produced by Now of Mirrr and songwriter Third of Tilly Birds. In August, Fourth released his first solo single "อยู่เฉย ๆ ก็น่ารัก ".
In June 2023, Fourth and Gemini participated in the group concert Love Out Loud Fan Fest 2023: Lovolution alongside other GMMTV artists. In August, they headlined their first concert together, Gemini Fourth My Turn Concert. Due to overwhelming interest in concert tickets, a second date was added.
2024–present: Riser Music, ''My Love Mix-Up!'' and Run the World Concert tour
Fourth was revealed as a new artist under Riser Music in February 2024. In March, he released his single "เทคะแนน " under the new label. Fourth went on to collaborate with rapper UrboyTJ, who produced his single "ง้อ ", released in August. He also worked with songwriter Kow of Fellow Fellow for his slow-pop single "ซึมซับ ", released in March 2025. In August 2025, Gemini and Fourth released their pop R&B duet "เรียกว่ารักได้ไหม ". In September, Fourth released his single "Side to Side", featuring Mabelz of Pixxie.On 27 March 2024, Gemini and Fourth released their design of My Ideal Fan, named "Look Khunnoo", which would become their fandom mascot and make appearances at fan events.
In April 2024, at the GMMTV 2024 Up & Above Part 2 press conference, Fourth was announced as part of the cast for the Thai adaptation of Scarlet Heart.
Fourth was originally set to appear alongside Gemini in the girls' love series 23.5, but in July 2023, it was announced that they had withdrawn from the series in order to prepare for their roles in a new series. Gemini and Fourth went on to star in My Love Mix-Up!, which premiered on 7 June 2024. They also performed on the soundtrack for the series, where their opening theme song, "ลบยัง ", won Best Theme Song at the Asian Academy Creative Awards, Y Entertain Awards, and Y Universe Awards.
In addition to participating in the group concert Love Out Loud Fan Fest 2024: The Love Pirates in May 2024, Gemini and Fourth went on to headline their Run the World Concert at the Impact Arena on 31 August and 1 September 2024, showcasing their wide range of abilities, including singing, dancing and rope acrobatics. GMMTV announced that the duo would embark on the Run the World Asia Tour, continuing in Ho Chi Minh City in October and concluding on 29 June 2025 in Osaka.
In November 2024, at the GMMTV 2025 Riding the Wave press conference, it was announced that Fourth and Gemini would star in the lead roles for the upcoming series Ticket to Heaven. Featuring an original script, the series will portray a young man in a Catholic seminary who explores his internal conflict between his sexuality, faith, and religion.
In January 2025, it was announced that Fourth would star alongside Yorch Yongsin in the upcoming horror film กฤษดาพาราไดซ์ Kijsada Paradise, directed by Mike Phontharis Chotkijsadarsopon. The film is scheduled to be released in theatres on 11 June 2026.
Following the conclusion of the Run the World Asia Tour, Gemini and Fourth returned to the Impact Arena for their AI-themed A.W.A.K.E Concert on 30 and 31 August 2025.
In November 2025, it was announced that Gemini and Fourth would play the lead roles of Tong and Mew in the upcoming musical adaptation of the 2007 film Love of Siam.