building schools in Myanmar, has joined a charity photo shoot to benefit victims of facial burns, has volunteered in a campaign to deliver free lunches to underprivileged people, has promoted the adoption of abandoned dogs, and has campaigned against domestic violence towards migrant wives. His advocacies are World Vision, Compassion Korea, DAIL Community, Social Welfare Society Inc., YWCA of Korea, Nanum House of Sharing and Korean Association of Cinematheques. Relationships and married Yoo first met actress Kim Hyo-jin in 2003 when they were models for a clothing brand, and the two became friends after continuously meeting in photo shoots. Their romantic relationship began in 2006, and they were among the very few Korean star couples who openly admitted their dating status. They announced their engagement in August 2011, and subsequently released pre-wedding photos. Their minimalist invitation was made from environmentally friendly paper and had the number 1,825 written on it, the exact number of days the two had spent together as a couple. They were married at the Shilla Hotel in Seoul on December 2, 2011. The wedding date marked the couple's fifth anniversary together and was booked by Yoo one year in advance despite landing on a Friday – an unusual day for a wedding. The ceremony was officiated by the president of World Vision Korea; Yoo and Kim are the organization's honorary ambassadors, and they donated a portion of their monetary wedding gifts to World Vision to help build a primary and middle school in Myanmar. Their first child, a son, was born on July 5, 2014. They welcomed their second son on April 15, 2019. Philanthropy On March 8, 2022, Yoo donated 10 million won to the Hope Bridge Disaster Relief Association to help the victims of the massive wildfire that started in Uljin, Gyeongbuk and has spread to Samcheok, Gangwon. On May 16, 2022, Yoo donated 10 million won to the 9th Wildflower Film Awards. Filmography As actor Film Television series Web series As filmmaker Theater Ha-il (2004) Six Out of Six (2005) Come to the Ghost House... (2007) Other activities 2006 28th Clermont-Ferrand International Short Film Festival - Jury 2007 9th Short Shorts Film Festival & Asia - Jury 2008 4th Jecheon International Music & Film Festival - Jury 2009 14th Busan International Film Festival - Jury 2009 22nd Tokyo International Film Festival - Jury 2011 3rd DMZ International Documentary Film Festival - Co-festival director