1. Hwang In-youp began his career in modeling industry before making his screen debut with a main role in the web series Why.

1. Hwang In-youp began his career in modeling industry before making his screen debut with a main role in the web series Why.
Hwang In-youp is known for his roles in 18 Again, True Beauty, the Netflix original series The Sound of Magic, Why Her, and Family by Choice.
Hwang In-youp was born in Uijeongbu, Gyeonggi Province, South Korea, on January 19,1991.
Hwang In-youp is the oldest son; his brother, who is three years younger, is a producer and singer-songwriter who goes by the name Inof.
Hwang In-youp graduated from high school at the Philippine Nikkei Jin Kai International School, and later graduated with a Bachelor of Fine Arts degree in fashion design at the Philippine Women's University.
Hwang In-youp entered the entertainment industry in 2017 as a runway model.
Hwang In-youp later signed a contract with the South Korean agency KeyEast, a subsidiary of SM Entertainment.
In 2020, Hwang In-youp gained recognition for his performance in the JTBC fantasy series 18 Again, a remake of the 2009 American film 17 Again.
Hwang In-youp played Goo Ja-sung, a school bully and the counterpart character of Stan, who was portrayed by Hunter Parrish in the original film.
Hwang In-youp contributed to the soundtrack of the series with the song "It Starts Today".
Hwang In-youp appeared in the independent short film Swimming Bird alongside Lee Ji-ah, which the film won at the 1st GwangMyeong Film Festival.
In 2021, Hwang In-youp was cast in the fantasy musical series The Sound of Magic, which was released globally on Netflix in May 2022.
Hwang In-youp is contributed to the soundtrack of the series with the song "I Mean It".
Later, Hwang In-youp confirmed to star in the SBS mystery legal drama Why Her which premiered in June 2022 marking his first lead role on a terrestrial TV station.
In 2022, Hwang In-youp's agency announced that he would be holding the 2022 "HWANG IN YOUP 1st Fan Meeting Tour" starting in South Korea.
Hwang In-youp has held fan meetings in five countries, including Singapore, Indonesia, Philippines, and Thailand.
On January 2,2024, it was reported that Hwang In-youp had signed an exclusive contract with KN Studio.
Hwang In-youp had completed mandatory military service before beginning a career in modelling.
Hwang In-youp has training in various martial arts such as Taekwondo, Hapkido and Kendo.