After graduating from the Hong Kong Academy for Performing Arts, Chu pursued a full-time career as a stage actor. In 2007, he formed a band called with his brother Pak Him and APA classmates
Michael Ning and
Yeung Wai-lun. The following year, he won Best Actor in the
28th Hong Kong Drama Awards with his performance in
Stones in His Pockets. In 2019, he was invited by director
Mika Kaurismäki to star in the lead and titular role of the Finnish romantic comedy film
Master Cheng, marking his first prominent and first international onscreen role. In the same year, Chu was handpicked by director
Norris Wong to co-lead the romance film
My Prince Edward after Wong saw his performance in the music video of
Alfred Hui's "An Actor Prepares". His performance received widespread acclaim, In 2021, Chu secured lead roles as Grey Bear in the romance film ''
and Dai Shing in the drama film Drifting. He also appeared in the 2022 drama film The Narrow Road'' alongside his brother. In 2023, Chu landed the lead role in the horror film '
, and reprised his role in ', the sequel to
Ready or K/not. He also played the main villain in the
ViuTV drama series ''
, a sequel to the 2020 series Leap Day. Despite receiving praise for his performance, the character faced criticism for odd motives and sudden personality twist. In 2024, Chu took on the lead role of Wing Lo, a comedic lyric writing course tutor, in the drama film The Lyricist Wannabe. He also appeared in supporting roles in the drama film Fly Me to the Moon and the martial arts film Twilight of the Warriors: Walled In the same year. Chu played Ben, a Taoist priest who is forced to industry to uphold family traditions in the 2024 drama film The Last Dance'', for which he won
Best Supporting Actor in the
43rd Hong Kong Film Awards. == Personal life ==