Im Siwan, better known by his stage name Siwan, is a South Korean singer and actor. Born on December 1, 1988, he is a member of the nine-member boy band ZE:A, which debuted in 2010. Im Siwan crossed over into acting and received critical acclaim for his roles in the television dramas "Triangle" (2014) and "Incomplete Life (aka Misaeng)" (2014).

Im Siwan

Kim Hye Eun is a South Korean actress and television personality born on March 1, 1973, in Busan, South Korea. She studied at Seoul National University and began her career as an announcer for MBC in 1997. She made her drama debut in “Nonstop 3” (2002), while still a member of the news team at MBC. In 2004, she decided to quit her MBC post and then went on to pursue a full-time career in drama. She has since appeared in the series “New Heart” (2007), “Women of the Sun” (2008), “Nameless Gangster: Rules of the Time” (2012), and “Secret Love Affair” (2014). More recently, she has starred in the dramas “Encounter” (2018) and “Doctor John” (2019).

Kim Hye Eun

Kim Jaejoong is a popular South Korean singer, actor and composer. Born as Han Jae Joon on January 26, 1986, the star was given up for adoption and his adopted family changed his name to Kim Jae Joong. He has stylized his name as JaeJoong as a music artist and also went by the name Hero Jaejoong. Kim Jaejoong started his music career as a part of the boy band TVXQ, serving as the lead vocalist from 2003 to 2010. After the group went on hiatus, Kim Jaejoong formed the pop trio JYJ with Park Yoochun and Kim Junsu. Kim Jaejoong successfully crossed over into acting and has starred in several popular dramas, including “Protect the Boss” (2011), “Dr. Jin” (2012), “Triangle” (2014) and “Spy” (2015). After his mandatory two-year military service, Jaejoong made his comeback in the 2017 television drama “Manhole.”

Kim Jaejoong

Jang Dong Chul

Oh Yun Soo

Baek Jin Hee is a South Korean actress. Born on February 18, 1990, she made her acting debut in the 2009 indie film “Bandhobi,” which garnered her the Cine21 Magazine’s 2009 New Actress of the Year award. Many other acting awards have followed, including the Excellence in Acting Award in a Special Production Drama at the 2014 MBC Drama Awards for her role in “Pride and Prejudice” with Choi Jin Hyuk. Her other memorable roles include “Loving You a Thousand Times” (2009), “High Kick: Revenge of the Short-Legged” (2011), “Empress Ki” (2013), “Triangle” (2014), “My Daughter, Geum Sa Wol” (2015) and “Jugglers” (2017). Baek Jin Hee attended Yongin University, where she studied film.

Baek Jin Hee

Lee Beom Soo is a popular veteran South Korean actor. Born on January 3, 1970, he made his acting debut in the 1990 film “Yes, Let’s Look Up at the Sky Now and Again.” He rose to stardom after his 2003 film role in “Singles” and has since starred in many popular films, including “Over My Dead Body” (2012), and television dramas, including his recent hits “Giant” (2010), “History of the Salaryman” (2012), “Dr. Jin” (2012), “IRIS 2” (2013), “The Prime Minister Is Dating” (2013), “Triangle” (2014), “Last” (2015) and “Moorim School” (2016). After a four-month first marriage in 2003, Lee Beom Soo married Lee Yoon Jin in 2010 and they have two children. With daughter So Eul and son Da Eul, Lee Beom Soo joined the cast of the popular reality show “The Return of Superman” in 2016.

Lee Beom Soo

Jang Dong Soo

Shin Seung Hwan

Kim Byung Ok is a South Korean actor. He was born on October 11, 1960 and made his acting debut in theater, twenty years before taking his first film role in 2000. Since then, he has appeared in numerous films and television dramas, including “God’s Quiz” (2010), “Cold Eyes” (2013), “Triangle” (2014), “Rebel: Thief Who Stole the People” (2017), “What’s Wrong with Secretary Kim” (2018), and “Legal High” (2019).

Kim Byung Ok

Jung Kyung Soon

Kim Byung Gi

Park Jiyeon is a South Korean musician and actress born on June 7, 1993, in Seoul, South Korea. She first rose to prominence as a member of girl group T-ara, debuting in July 2009. She went on to become the first member of the group to release a solo EP in May 2014. She made her drama debut in “Soul” (2009), and also appeared in “Dream High 2” (2012) and “Triangle” (2014). She has also appeared in movies, including “Encounter” (2015). More recently, she has appeared in the dramas “My Runway” (2016) and “Let Me Hear Your Song” (2019).

Park Ji Yeon

Park Hyo Joo is a South Korean actress. Born on October 8, 1982, she made her acting debut in the 2001 film “A Day.” She has since appeared in many popular films and television dramas, including the recent “Triangle” (2014), “Secret Door” (2014), “Twenty Again” (2015), “Wanted” (2016) and “Fake” (2017).

Park Hyo Joo

Hong Suk Chun is a South Korean actor, television personality, restaurateur, author, and politician. He was born on February 3, 1971 in Cheongyang County, South Korea, and made his debut as a model before taking on his first role as an actor in 1994. Since then, he has appeared in countless variety shows, films, and television dramas, including “Swallow the Sun” (2009), “Vampire Prosecutor 2” (2012), “Reply 1994” (2014), “Love Clinic” (2015), “The Player” (2018), and “Absolute Boyfriend” (2019).

Hong Suk Chun

Yeo Ho Min

Im Ha Ryong, also known as Im Han Yong, is a South Korean actor and comedian. He was born on October 31, 1952 in Danyang County, North Chungcheong Province, South Korea, and made his debut in the entertainment world in 1981. Starting out as a gag man, he moved towards television dramas in the late nineties. Since then, he has appeared in various films and television dramas, including “Over the Rainbow” (2006), “The 3rd Hospital” (2012), “Triangle” (2014), and “365: Repeat the Year” (2020).

Im Ha Ryong

Kang Shin Il is an award-winning veteran South Korean actor. Born on November 26, 1960, he started his acting career in 1985 in a theater troupe despite having a college degree in engineering. Kang Shin Il rose to fame in stage productions before making his big-screen debut in the 1998 film adaptation of “Chilsu and Mansu.” He has since enjoyed a prolific career in theater, films and television dramas, including the recent “Triangle” (2014), “Pinocchio” (2014), “Descendants of the Sun” (2016), “Neighborhood Lawyer Jo Deul Ho” (2016) and “Whisper” (2017).

Kang Shin Il

No Young Hak

Jung Ji Yoon is a South Korean actress. She was born on November 22, 1984 and made her acting debut in 2011. Since then, she has appeared in a handful films and television dramas, including “Confession” (2014), “Triangle” (2014), and “Touch” (2020).

Jung Ji Yoon

Kim So Hyun is a popular South Korean actress. Born on June 4, 1999, she began her acting career at the age of 7. She is best known for her roles in the “Moon Embracing the Sun” (2012), “Rooftop Prince” (2012), “Missing You” (2012), “I Hear Your Voice” (2013), “The Suspicious Housemaid” (2013), “Triangle” (2014), “Reset” (2014), “The Girl Who Sees Smells” (2015), “Who Are You: School 2015” (2015), “Page Turner” (2016), “Nightmare Teacher” (2016), “Bring It On, Ghost” (2016), “Goblin” (2016-2017) and “Radio Romance” (2018). Kim So Hyun has won numerous Best Young Actress awards for her roles and is considered one of the best young actresses working today.

Kim So Hyun

Lee Yoon Mi

Jang Dong Jik

Jo Sang Goo

Kim Ji Young (1938)

Wi Yang Ho

Is blood thicker than the sea of choices you make in life? Three young brothers are separated after their parents die in a sudden accident. The oldest, Jang Dong Soo (Lee Beom Soo), grows up to become a police detective like his father. The middle son, Jang Dong Chul (Kim Jaejoong), grows up on the streets and uses his survival skills to climb to the top of the crime syndicate while going by his new name, Heo Young Dal. The youngest brother, Jang Dong Woo (Im Siwan), was adopted by a wealthy family and uses the name Yoon Yang Ha. Twenty years later, when the paths of the three brothers cross in unexpected ways, will they be able to recognize their real relationship? “Triangle” is a 2014 Korean drama series directed by Yoo Chul Yong and Choi Jung Kyu.

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