Lo was born on 24 October 1982, in a middle-class family in Hong Kong.[1] Despite his parents had expressed doubts on whether he can make a living, he decided to study film and become an actor since he was still at school.[2] He retook Hong Kong Certificate of Education Examination once and later attended the City University of Hong Kong to study creative media.[3] He directed a politically themed short film 21 Years After in 2010.[4] After graduating with a Bachelor of Arts in 2011,[5] Lo simultaneously attended graduate school at Lingnan University and worked as an independent film director.[4] He directed and produced Days After n Coming, an extended version of 21 Years After which documented about political movements in Hong Kong.[4] The documentary was critically acclaimed and entered the 36th Hong Kong International Film Festival.[4] Lo also received Human Rights Awards in the 12th South Taiwan Film Festival [zh].[4] Lo landed his first acting role in the 2011 RTHK television movie Beside(s), Happiness [zh] directed by Heiward Mak.[3][6] Lo received his Master of Arts in cultural studies from Lingnan in 2014.[7] He taught documentary filmmaking temporarily in universities and secondary schools.[8]
Lo continued to direct and act in several featured films and short films after graduation,[6] including Heiward Mak's 2014 romance film Uncertain Relationship Society [zh].[2] Lo befriended Mak after their frequent collaborations and joined her newfound artist agency later in 2016.[2] Lo also starred in the 2018 political film No.1 Chung Ying Street [zh] and Mak's 2019 family drama film Fagara.[9][10] In 2020, Lo received his breakout role as the Christian son of a homosexual old man in the drama film Suk Suk.[11] He was nominated for Best Supporting Actor in the 39th Hong Kong Film Awards.[12]
In 2023, Lo was cast in the lead role in the featured film Time Still Turns the Pages.[13] He portrayed a school teacher who had witnessed his brother's suicide due to academic pressure and recalled his childhood trauma while trying to save a suicidal student.[14] Lo's acting and onscreen charisma received widespread acclaim,[15] and was nominated for Best Actor in the 42nd Hong Kong Film Awards.[16]
Personal life
After producing several politically themed films, Lo was denied entry to Macau in 2016 due to the potential "threats to the stability of the territory’s internal security". Despite being able to enter, Lo had previously been detained for questioning before the incident occurred.[17]
As of February 2024, Lo is dating actress Fish Liew.[18] Liew publicly announced their relationship in December 2022.[19]