Wi has also starred in the films Gonjiam: Haunted Asylum (2018), Shark: The Beginning (2021) and Midnight (2021), as well as the television series Something in the Rain (2018), Romance Is a Bonus Book (2019), 18 Again (2020), Bad and Crazy (2021), Little Women (2022), The Worst of Evil (2023), and The Midnight Romance in Hagwon (2024).

The series received positive reviews and Wi was praised for his acting, earning a nomination for Best New Actor - Television at the 55th Baeksang Arts Awards.

[6] In 2020, Wi appeared as a famous baseball athlete in the television series 18 Again, based on the American film 17 Again.

In 2021, Wi also played a serial killer in the thriller film Midnight, and starred alongside Lee Dong-wook in the television series Bad and Crazy.

[8] In 2023, Wi starred in the Disney+ series The Worst of Evil alongside Ji Chang-wook and Im Se-mi,[9] and the Netflix series Gyeongseong Creature alongside Park Seo-joon, Han So-hee, Soo Hyun, Kim Hae-sook and Jo Han-chul.