Sun Jiajun (孙嘉浚)

Sun Jiajun has built his career as a familiar face in China’s suspense and fantasy short‑drama scene. Since debuting in 2014, he has quietly amassed a steady filmography, but what truly sets him apart is his deep association with the acclaimed Bu Si Yi (The Strange) anthology series — a cult favourite among suspense fans. Over the years, he has appeared in multiple instalments, including Bu Si Yi: Dictionary, Bu Si Yi: Radio, and Bu Si Yi: Video, earning him a reputation as a “veteran” of the franchise. His willingness to anchor low‑budget, high‑concept genre pieces has made him a recognisable and reliable presence for audiences who crave something beyond mainstream idol dramas.

Breakthrough Role

Sun’s first major step forward came in 2020 when he landed the lead role in the fantasy micro‑drama Bu Si Yi: Mystery of the Puzzle (Mi Ren Mi Shi). As the first project in which he truly carried the narrative, the series allowed him to showcase his range within the eerie, twist‑driven world that the Bu Si Yi franchise is known for. The role marked a turning point, transitioning him from ensemble player to leading man in the suspense genre. In the years that followed, he entered a highly productive phase: in 2023 alone, he appeared in multiple projects, including the phone‑centric anthology Shh! Look at Your Phone, the suspense docudrama I Confess, and the supernatural period short Strange Tales of the Mountains: Volume Two.

Public Perception

Within China’s entertainment industry, Sun Jiajun occupies a niche as a hard‑working genre actor who has steadily built his career without relying on viral fame or heavy promotion. He is often described as an “old friend” of the Bu Si Yi team, having grown alongside the series over multiple seasons. While his public profile remains modest compared to mainstream stars, he has cultivated a loyal following among fans of suspense, horror, and fantasy shorts — a community that values atmosphere and storytelling over star power. On platforms like Bilibili and Youku, his work continues to attract viewers who appreciate the low‑key, craft‑driven nature of his performances. As he continues to expand his filmography with projects like Bu Si Yi: Strange Tales in 2025, Sun is widely seen as a dependable actor who has found his footing in a genre that rewards consistency and quiet dedication.