(2013), Wonderful Days (2014), Assembly (2015), Let's Fight, Ghost (2016), Save Me (2017), The Game: Towards Zero (2020), Secret Royal Inspector & Joy (2021) and Vincenzo (2021) and Heartbeat (2023), as well as the movies Marriage Blue (2013) and House of the Disappeared (2017).

Ok Taecyeon was born in Gangnam District, Seoul, South Korea,[1] but emigrated at the age of 10, with his parents and older sister Jihyen to Boston, Massachusetts,.

[7] Ok lived in Massachusetts for seven years, attending Bedford High School where he was a member of the Chess Club, Jazz Band, JV Soccer Team, and National Honor Society, before returning to pursue his career in Korea.

In 2008 he took part in Mnet's Hot Blood Men[6] which follows the extreme training of 13 trainees in order to become a member of the boy band One Day.

[11] In 2012, Ok teamed up with his fellow Dankook University alumni students to produce a digital album titled Blue Bears with Taecyeon.

[17] In 2010 he made his acting debut in KBS drama series Cinderella's Sister alongside Moon Geun-young and Chun Jung-myung.

[20] In September 2011, FujiTV announced that Ok was going to become a regular on their Sunday drama Boku to Star no 99 Nichi, along with Japanese actor Nishijima Hidetoshi and South Korean actress Kim Tae-hee.

In February 2013, it was announced that Ok would form an on-screen couple with Taiwanese actress Emma Wu, in the Global Edition of the reality show We Got Married.

He plays an aspiring police officer who studies at the library to pass his entrance exams by day and works as an official's chauffeur by night.

[29] In 2016, he starred in horror comedy Hey Ghost, Let's Fight with Kim So-hyun,[30] and featured in web-drama 7 First Kisses by Lotte Duty Free.

[36] In the same year, Ok also starred in the historical drama Secret Royal Inspector & Joy, which premiered on both tvN and iQiyi in November 2021.

[37] In 2022, he played the role of Lim Jun-young, a Joseon spy who sneaks into the Japanese army camp in the war action film Hansan: Rising Dragon, the second instalment of Kim Han-min's Yi Sun-sin trilogy.

[44][45] On June 20, 2018, then-Prime Minister Lee Nak-yon recognized and praised Ok's efforts to enlist in active duty during his congratulatory speech at the 15th Exemplary Military Servicemen Awards, where Ok was hosting.

One of the event officials stated, "Corporal Ok Taec-yeon gave up his American residency; he set a great example, as he received surgery for the discs in his back and accepted active duty despite the fact that he had previously approved for alternative service.

[48] In February 2019, Ok received an early promotion as a Sergeant for his exceptional conduct while serving as a military instruction assistant at the 9th Armed Forces Division in Gyeonggi Province.

[49] Due to his superb records, exemplary character, and great performance, Ok was appointed as a 'Special Class Warrior' by his division commander and was awarded a 'Model Soldier' by the Ministry of National Defense.