Lok won Best Supporting Actor in the 7th People's Choice Television Awards for his role as Yuen Tin-chau in the ViuTV sports drama series Rope a Dope (2022).

[10] In 2016, he transferred to ViuTV, the newly launched free television channel under Now TV, as a host and actor,[6][11] making his acting debut in the romance series 3X1 that same year.

[12] In 2017, Lok landed his first major role as Soda, the right-hand man of a gangster played by David Siu, in the mystery thriller series Psycho Detective [zh].

[6][17] He was invited to host ViuTV's flagship music program Chill Club [zh] in the same year, with producer Yip Chi-man stating that he chose Lok due to his comedic performance in Hong Kong West Side Stories.

[27] His performance, particularly his death scene, garnered widespread acclaim,[28] and he won Best Supporting Actor for this role in the 7th People's Choice Television Awards [zh] the following year.

[29] In 2023, he starred as Chow Sai-man, a selfish teacher who was forced to participate in a battle royal, in the thriller series Left On Read [zh].