• Lee Min Ho attends a press conference for a commercial event on September 11, 2014 in Taipei, Taiwan.

Lee Min Ho attends a press conference for a commercial event on September 11, 2014 in Taipei, Taiwan. (Photo : Getty Images/Ashley Pon)

"The Legend of the Blue Sea" star Lee Min Ho is exactly two years younger than "Vinyl" alum Douglas Smith. The former was born on June 22, 1987 while the latter was born on June 22, 1985.

Lee was born in Seoul, South Korea. He attended Konkuk University where he studied Bachelor of Arts in Film.

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On the other hand, Smith was born in Toronto, Ontario, Canada. He attended Shakespeare Summer School of the Royal Academy of Dramatic Art.

In 2014, Smith starred in "Punk Rock" by Simon Stephens at the Lucille Lortel Theatre in the West Village. This was the play's New York premiere and the actor's Broadway debut.

On the small screen, Smith played a recurring role in "Vinyl" in 2016. HBO cancelled the period drama series created by Martin Scorsese, Mick Jagger, Terence Winter and Rich Cohen after only one season.

On the big screen, Smith starred in "Miss Sloane" in 2016 and in "The Bye Bye Man" in January. In 2015, he played Eric Thompson in "Terminator Genisys," which starred Arnold Schwarzenegger, Jason Clarke, Emilia Clarke, Jai Courtney, J.K. Simmons, Math Smith, Courtney B. Vance, Dayo Okeniyi and Lee Byung Hun.

In 2009, Byung Hun's wife Lee Min Jung starred with Min Ho in "Boys Over Flowers." Min Jung played a rich man's daughter named Ha Jae-kyung, who became the fiancée of the F4 leader Gu Jun Pyo, played by Min Ho.

In 2016, Min Ho made his television comeback when he starred in "The Legend of the Blue Sea." He played a magistrate's son in the Joseon era who is also a town head who fell in love with a mermaid named Se Hwa, played by Jun Ji Hyun.

On the big screen, Min Ho starred in "Gangnam Blues' in 2015 and in "Bounty Hunters" in 2016. Here is an interview with the "The Legend of the Blue Sea" star at KCON LA 2016: