Lee Sung Yeol

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Lee Sung Yeol - Biography, Profile, Facts and Career

Lee Sung Yeol is a South Korean singer and actor.

He gained fame as a member of Infinite, before expanding his solo career as an actor and appearing in various drama series such as Hi! School – Love On (2014) and Love Returns (2017-2018).


Long ago before Lee Sung Yeol become one of the Infinite members, he already had joined SM Academy as an actor trainee.

Sung Yeol already had a grand desire to be an actor even before his debut. In 2009, he finally debuted as an actor for a series called Good Job, Good Job.

One year later, Sung Yeol turned his career to be a singer. On June 9, 2010, this cute actor then debuted as an Infinite’s vocalist by releasing their first EP, First Invasion.

He couldn’t resist his desire to be an actor. And finally, in 2011, he came back to the drama series called While You Were Sleeping.

Two years later, he was given a grand opportunity to be the main character of Please Remember, Princess (2013) and Hi! School – Love On (2014). In that drama, he also released its OST, Heartthrob.

Sung Yeol then continued his acting career for several projects, such as D-Day (2015) and Temporary Cold Case Task Force (2017).

In 2019, he starred a horror movie with Eunji from Apink, titled 0.0MHz. In that year, he also enlisted in military service in October 2020.

Several months later, Sung Yeol decided to leave Woollim Entertainment on March 31, 2021, and signed to a new agency, Management 2sang on June 7, 2021.

Read also: Ahn Eun Jin – Biography, Profile, Facts, & Life Story


  • Real Name: Lee Sung Yeol (이성열)
  • Stage Name: Lee Sung Yeol (이성열)
  • Also Known as: Lee Sung Yul / Sungyeol / Lee Seong Yeol / Lee Seong Yul
  • Nickname: Choding, Kindergarten Boy
  • Birthday: August 27, 1991
  • Birthplace: Suji-gu, Yongin, Gyeonggi, South Korea
  • Zodiac Sign: Virgo
  • Nationality: South Korean
  • Religion: –
  • Profession: Actor, Singer
  • Education: Department of Applied Music, Daekyung University
  • Hobbies: Watching movies
  • Facebook: –
  • Twitter: @Seongyeol1991
  • Threads:
  • Instagram: @sungyeol_827
  • TikTok: –
  • YouTube: –

Height, Weight, & Physical Appearances 

  • Height: 183 cm (6’0″)
  • Weight: 70 kg (154 lbs)
  • Blood Type: B
  • Hair Color: Black
  • Eye Color: Black
  • Body Measurements: –
  • Shoe Size: –


  • Father: Lee Won Young
  • Mother: Kim Kyung Ok
  • Brother: Lee Da Yeol
  • Sister: –

Girlfriend & Dating History

He has never dated anyone publicly nor rumored to date anyone. He most likely prefers to keep his personal and dating life out of the spotlight.

Net Worth 

Multiple sources estimated his net worth to be around $1 million to $5 million. He seems to earn most of his income through working as an idol-singer under Infinite as well as an actor.

Plastic Surgery

There is no known information on whether he has undergone any cosmetic surgery to alter his visual appearance.


  • INFP is Sung Yeol’s MBTI type.
  • Her brother, Dayeol, is a Golden Child’s member.
  • Initially, Sung Yeol had a desire to be an actor before joining Infinite.
  • In the group, he is the tallest person.
  • He once joined SM Academy as an actor trainee.
  • He attended the same college alongside Hoya, L, and Sunggyu.
  • He once became a part of Woollim Entertainment.
  • Sung Yeol and L didn’t like each other initially.
  • He admitted that he would hold his girlfriend’s hands and go to the theatre as the first thing to do.
  • He is a very competitive person when it comes to playing games.
  • Sung Yeol has a hobby to tease his managers and Infinite’s members.
  • His nose is his most favorite body part.
  • He once lost his bet and had to go to the airport just wearing sunglasses and a bathrobe.
  • Sung Yeol and his brother have dyslexia.
  • His favorite food is Ton Katsu.
  • He hates bean paste soup.
  • Sung Yeol’s favorite colors are green, pink, and purple.
  • He is very emotional.
  • SNSD’s Taeyeon is his favorite idol.
  • Sung Yeol loves to use a perfume called Voyage d’Hermès by Hermès
  • He never forgets to put on his cologne into his bag.
  • He enlisted into military service from 2019 to 2020.
  • His ideal type is a girl who is cute, easy-going, and isn’t deceiving. He picks Soo Ae as his ideal type.

Read also: Kang Yul – Biography, Profile, Facts, & Life Story


  • 0.0MHz (2019), as Sang Yeob
  • INFINITE Concert Second Invasion Evolution The Movie 3D (2012), as himself

Drama Series 

  • Numbers (MBC | 2023), as Sim Hyeong Woo
  • Time to Remember (2021), as Jung Woo Jin
  • Love Returns (KBS1 | 2017-2018), as Hong Seok Pyo
  • D-Day (JTBC | 2015), as An Dae Gil
  • Hi! School – Love On (KBS2 | 2014), as Hwang Sung Yeol
  • Love for Ten: Generation of Youth (CGV | 2013), as Jeong Gi Yeok
  • Puberty Medley (KBS2 | 2013), as Student Council President (cameo)
  • Welcome to Convenience Store (2011), as himself (voice role)
  • While You Were Sleeping (SBS | 2011), as Yun So Joon
  • Jolly Widows (KBS | 2009-2010), as student (cameo)
  • Cheer Up On Love (MBC | 2009), as student (cameo)
  • Boys Over Flowers (KBS2 | 2009), as student (cameo)

TV Shows

  • 2017 Woollim Pick (Mnet ⏐  2017), as himself (MC)
  • Law of the Jungle in Kota Manado (SBS 2017), as himself (cast member)
  • Law of the Jungle in Panama (SBS 2016), as himself (cast member)
  • Law of the Jungle in Belize (SBS 2013), as himself (cast member)
  • Ranking King (Mnet 2012), as himself (cast member)
  • Sesame Player (Mnet 2011), as himself (cast member)


“I don’t know what the future holds, but just as I was able to build a great body through steady exercise and strict diet management, I am confident that I could succeed if I take challenges and and work hard.”


Who is Lee Sung Yeol?

He is a South Korean singer and actor.

Who is Lee Sung Yeol’s real name?

His real name is Lee Sung Yeol (이성열).

What makes Lee Sung Yeol famous?

He gained fame as a member of Infinite, before expanding his solo career as an actor and appearing in various drama series such as Hi! School – Love On (2014) and Love Returns (2017-2018).

Where is Lee Sung Yeol from?

He was born in Suji-gu, Yongin, Gyeonggi, South Korea.

How old is Lee Sung Yeol?

He was born in 1991, and he is 34 years old as of 2025.

When does Lee Sung Yeol celebrate his birthday?

He celebrates on the 27th of every August.

How tall is Lee Sung Yeol?

His height is 6’0″ or 183 cm.

Who are Lee Sung Yeol’s parents?

He did not reveal the names of his father and mother.

Is Lee Sung Yeol married?

He is not married. Furthermore, there is no information on whether he is in a relationship or not.

Who is Lee Sung Yeol’s ex-girlfriend?

His ex-girlfriend is not known.

How rich is Lee Sung Yeol?

His net worth is around $1 million to $5 million.

What is Lee Sung Yeol’s nationality?

His nationality is South Korean.

Sung Yeol is really a multi-talented performer. He acts really well, sings really well, dances really well, and stoles his fans’ hearts really well.