Jakrapatr Kaewpanpong (; born 14 February 2005), nicknamed William (), is a Thai singer and actor. He is the main vocalist of the Thai boy band LYKN under Riser Music, formed through the GMMTV survival reality show Project Alpha (2022). Aside from his musical activities, he gained recognition through his acting debut as Thame in the television series ThamePo: Heart That Skips a Beat (2024). He is also known for playing Rome, the younger brother of Thee, in Me and Thee (2025).
Early life and education Jakrapatr was born as Phuwadol Kaewpanpong on 14 February 2005. Through his mother, he is of one-quarter American ancestry. He has an older half-brother from his mother side. Raised in Hat Yai, Thailand, he pursued various extracurricular activities after struggling with academics, such as playing musical instruments and practicing martial arts, eventually earning a black belt in Taekwondo.
He attended Pholwitaya School in Hat Yai for seventh through ninth grade. During this period, he developed a passion for singing after being inspired by Tom Isara's "Durian Mask" performance on the Thai television show The Mask Singer (2016). Motivated by the performance, he began practicing independently at home before receiving formal vocal lessons with his father's support. He later advanced his training by enrolling in the Young Artist Music Program (YAMP), a college prep school offered by the College of Music, Mahidol University, majoring in Musical Theater.
Prior to changing his name to Jakrapatr, he changed his birth name to Natthaphong.
Career 2020–2023: Pre-debut and Project Alpha During his high school years, Jakrapatr was a vocalist for several student bands, including Lost & Found, Dolphin, and Broccoli. In 2022, he was selected as a trainee and contestant for GMMTV's reality competition show Project Alpha after passing a remote audition, following a recommendation from the head of his school's musical theatre department. Throughout the competition, which aired from December 2022 to March 2023, he established himself as a strong vocalist, delivering critically acclaimed covers of tracks by prominent artists such as Tilly Birds and Jeff Satur. He maintained his "Alpha" status as a top-ranking contestant throughout the competition until the finale, where he placed first overall to earn the title "King of Alpha" and secure his spot as a member and main vocalist of the Thai boy band LYKN.
2023–present: Debut with LYKN and acting career
Jakrapatr officially debuted as a member of LYKN under Riser Music, alongside Lego, Nut, Hong and Tui, with the release of their digital single "เลิกกับเขาเดี๋ยวเหงาเป็นเพื่อน (May I?)" on 5 May 2023. In addition to his activities with the group, he released the solo soundtrack "ภาพสุดท้าย (Last Twilight)" for the 2023 television series Last Twilight. The track achieved significant digital success, surpassing 30 million views on YouTube by September 2026, and earned a nomination for Best Theme Song at the 29th Asian Television Awards.
In 2024, Jakrapatr made his television debut starring as Thame, the leader of a fictional boy group named MARS, in GMMTV's musical romantic drama television series ThamePo: Heart That Skips a Beat, appearing alongside Supha Sangaworawong (Est) and his fellow LYKN bandmates. For the series's soundtrack, he contributed the solo track "5CM". In July 2025, he expanded into entrepreneurship by launching his independent clothing brand, Zaven, serving as its founder.
His on-screen partnership with Supha continued as part of the supporting cast in the romantic comedy television series Me and Thee (2025), in which Jakrapatr portrayed the role of Rome, the main lead's younger brother. Their acting partnership further continued the following year, with Jakrapatr starring in the lead role as Dean in the romantic drama series You Maniac (2026). Apart from his continuous group projects and acting roles, he officially expanded his individual discography under Riser Music by releasing the standalone single "จำได้ว่าลืม (Flashback)" on 9 July 2026.
Discography
Singles As lead artist YearTitleLabelRef.2026"จำได้ว่าลืม" (Flashback)Riser Music
Collaborations YearTitleLabelRef.2025"เสียงหัวใจ (Love Echo)" GMMTV Records 2026"Love Feels So Fast"
Soundtrack appearances YearTitleSoundtrackLabelRef. 2024 "ภาพสุดท้าย (Last Twilight)" Last Twilight OST GMMTV Records 2025 "5CM" ThamePo: Heart That Skips a Beat OST "ระหว่างทาง (Good Time)" (Cover) 2026 "Red Flag" You Maniac OST "อาการจะรัก (Love Symptoms)"
Filmography
Television series Year Title Role Notes 2024 ThamePo: Heart That Skips a Beat "Thame" Teema Kanjanakittkul Main role 2025 Me and Thee "Rome" Kritdanai Lee Supporting role 2026 Peach and Me You Maniac Dean Main role
Film Year Title Role Notes 2023No WorriesHimselfShort film for LYKN's third single of the same name
Television shows YearTitleNetworkNotes2022–2023Project AlphaGMM 25 Contestant; Finished 1st (King of Alpha)2022–2023Talk with Toey Guest (Ep. 86, 93) 2023–2026 Arm Share GMMTV YouTube channel Guest (Ep. 120, 127, 135, 151–152, 175, 189, 197)2023 School Rangers GMM 25 Guest (Ep. 267–269, 286–287) Khun Phra Chuai Workpoint TV Guest (7 May 2023)2023–2025 Family Feud Thailand One 31 Guest (Ep. 796, 858, 880, 935)2024 The Golden Singer: Beautiful Voice Stage Guest (Ep. 18) Sound Check 2024 Guest (Ep. 4, 40) Thailand Music Countdown 2024 Channel 3 Guest (Ep. 10, 19, 27) Song of Fame Thai PBS Tata Young's guest2025 Who is My Chef Workpoint TV Guest (Ep. 306) The Wall Song Guest (Ep. 232, 271) Goodbye My Luck Guest (Ep. 19) Thailand Music Countdown 2025 Channel 3 Guest (Ep. 5, 13, 19) Face Off: Identical Twins Workpoint TV Guest (Ep. 90)Idol EnergyGMMTV YouTube channelRegular Member
Music video appearances Year Title Artist 2025 "ไม่อยากเป็นรักแรก (Your Last)" Est Supha
Fan meetings Title Date Venue Notes Ref. Last Twilight Final EP. Fan Meeting 26 January 2024 Siam Pavalai Royal Grand Theater, Siam ParagonGuest artist Tom Isara Birthday Fan Meeting 3 June 2024 Found Venue, Bangkok Last Twilight Fan Meeting in Manila 12 October 2024 UP Theatre, Manila ThamePo: The First Beat 13 December 2024 SF World Cinema, CentralWorld With ThamePo cast ThamePo: Our Last Beat Fan Party 7 March 2025 MCC Hall, The Mall Lifestore Bankapi William Fan Party in Tianjin 5 April 2025 Tianjin, China WilliamEst 1st Fan Meeting "West Side Story" in Hong Kong 31 August 2025 AXA Dreamland, Go Park, Hong KongWith Est WilliamEst 1st Fan Meeting in Taipei 20 September 2025 Legacy Taipei, Taipei WilliamEst Fan Meeting "Keep The Beat" in Vietnam 25 October 2025 Hòa Bình District 10 Cultural Center, Ho Chi Minh City WilliamEst JIB Dream Fan Meeting in Rome 13 December 2025 Hilton Rome Airport Hotel, RomeGMMTV Fanday 28 in Tokyo11 January 2026Nissho Hall, TokyoMe and Thee: Fan Party 17 January 2026Union Hall, Union MallWith Me and Thee cast Me and Thee: After Fan Party 18 January 2026 WilliamEst 1st Fan Meeting "Echo: Resonance" in Singapore 24 January 2026 GVmax Vivocity, SingaporeWith EstGMMTV Fanday 29 in USA 8 March 2026 Racket NYC, New York City 10 March 2026 Brooklyn Steel, New York City 15 March 2026 Alex Theatre, California WilliamEst "Lovestruck" Fan Meeting in Manila 23 March 2026 Metrotent Convention Center, Manila You Maniac: Opening Night 29 August 2026 MCC Hall, The Mall Lifestore Bangkapi With You Maniac Cast
Concerts
Title Date Venue Notes Ref. Jeff Satur Red Giant Concert 3 May 2025 Impact Arena Guest artist Love Out Loud Fan Fest 2025: Lovemosphere 17–18 May 2025 With Est, Earth, Mix, Boun, Prem, Pond, Phuwin, Force, Book, Joong, Dunk, Jimmy, Sea, First, Khaotung, Gemini, Fourth, Perth, Santa, Winny, Satang WilliamEst WE Magnetic Fancon 9–10 August 2025 Union Hall, Union Mall With Est Love Out Loud Fan Fest 2026: Heart Race 22–24 May 2026Impact Arena With Est, Earth, Mix, Boun, Prem, Pond, Phuwin, Force, Book, Joong, Dunk, Jimmy, Sea, First, Khaotung, Gemini, Fourth, Perth, Santa, Junior, Mark, Joss, Gawin WilliamEst Reign Together Concert 5–7 December 2026 With Est
Awards and nominations
Year Award Category Work Result 2024 Maya TV Awards 2024 Original Soundtrack of The Year"ภาพสุดท้าย (Last Twilight)" 29th Asian Television Awards Best Theme Song Y Entertain Awards 2024 OST. of the Year Y Universe Awards 2024 The Best Series OST The Best Series OST 2025 TOTY Music Awards 2024 POPular OST. of the Year ContentAsia Awards 2025 Best Asian LGBTQ+ Programme ThamePo: Heart That Skips a Beat Best Original Song Created in Asia for an Asian TV Series/Programme or Movie "5CM" Howe Awards 2025 Rising Icon Award 2026 TOTY Music Awards 2025 POPular OST. of the Year "5CM" Kazz Awards 2026 Hottest Artist Award Most Trending on Social Media Me and Thee
References
External links