On Joo-wan

Song Jeong-sik (; born December 11, 1983), better known by his stage name On Joo-wan, is a South Korean actor. He won widespread praise for his leading role in the film The Peter Pan Formula, and also appeared in My Mighty Princess, 12 Signs of Love, and The Five.

Personal life On July 4, 2025, it was announced that On would marry his Beautiful Gong Shim co-star Bang Min-ah after dating for four years. The couple married on November 29, 2025, in Bali.

Filmography Film Year Title Role Notes 2004 Flying Boys Lee Chang-seob 2005 The Aggressives Jjaeng The Peter Pan Formula Kim Han-soo 2006 If You Were Me 2 Employee Segment: "Hey, Man!" The City of Violence Young Tae-su Bloody Tie Yoo Sung-geun 2007 The Cut Joong-suk 2008 My Mighty Princess Il-young 2012 The Taste of Money Yoon Chul/Charlie Natural Burials – The Movie Jung-hoon 2013 The Five Oh Jae-wook 2014 Obsessed Kyung Woo-jin 2015 Remember You Dong-gun Time Renegades Teacher Park 2020 Honest Candidate Kim Jun-young 2022 Honest Candidate 2 Special appearance

Television series Year Title Role Notes 2002 Rustic Period Japanese student 1 2005 That Summer's Typhoon Han Ji-hoon 2007 Chosun Police 1 Kim Kang-woo 2011 My Love By My Side Go Seok-bin 2012 12 Signs of Love Cha Jin-oh Natural Burials Jung-hoon 2013 The Blade and Petal Bojang of Goguryeo 2014 Drama Special: "Illegal Parking" Noh Jung-do The Idle Mermaid Lee Hyun-myung Punch Lee Ho-sung 2015 The Time We Were Not in Love Himself Cameo; episode 2 The Village: Achiara's Secret Seo Ki-hyun 2016 Beautiful Gong Shim Seok Joon-soo 2017 Man in the Kitchen Jung Tae-Yang 2019 The Lies Within Jin Young-min 2021 The Penthouse: War in Life Baek Joon-ki Cameo (Season 2, episode 13)Series regular (Season 3) 2023 Moon in the Day Han Min-oh

Television shows Year Title Role Notes 2015–2016 Shaolin Clenched Fist Fixed cast member as "#2" Episodes 1–13 2017 King of Mask Singer Contestant as "Young Master, Shows a Bitter Taste" Episodes 103–104 2020Sea Police 2 Main cast 2021 Awesome Romance Host

Hosting Year Title Notes 2021 Korean Popular Culture and Arts Awards with Jang Ye-won

Radio shows Year Title Role Notes 2008 Lee Juck's TenTen Club

Stage Theatre Year Title Role Notes 2016 Newsies Jack Kelly2018–2019; 2020–2021 The Days Kang Moo-young 2022 Sandglass Tae-soo

Awards and nominations + Name of the award ceremony, year presented, category, nominee of the award, and the result of the nomination Award ceremony Year Category Nominee / Work Result Baeksang Arts Awards 2007 Best New Actor – Film The Peter Pan Formula Blue Dragon Film Awards 2006 Best New Actor The Peter Pan Formula Dubai International Film Festival 2006 Best Actor The Peter Pan Formula Golden Cinematography Awards 2007 Best New Actor The Peter Pan Formula Korea Drama Awards 2018 Excellence Award, Actor Man in the Kitchen Korean Film Awards 2006 Best New Actor The Peter Pan Formula MBC Drama Awards 2017 Excellence Award, Actor in a Weekend Drama Man in the Kitchen SBS Drama Awards 2016 Special Acting Award, Actor in a Romantic Comedy Drama Beautiful Gong Shim 2021 Best Character Award, Actor The Penthouse: War in Life 2 and 3