[1] Apart from his group's activities, Sehun has also starred in various films and television dramas such as Dokgo Rewind (2018), Secret Queen Makers (2018), The Pirates: The Last Royal Treasure (2022), and All That We Loved (2023).

In July 2016, Sehun was announced to be starring as the male lead in the upcoming Korean-Chinese web drama Dear Archimedes, which was supposed to began airing in 2019.

[13] In May 2018, it was announced that Sehun will be starring in the web drama Secret Queen Makers which is produced by Lotte Duty Free.

On September 14, 2018, Sehun with fellow Exo member Chanyeol released a collaborative single, "We Young", for SM Station X 0.

After becoming the brand's spokesperson, Dr. Jart+ achieved the highest sales ever during China's mid-year shopping festival and Oh's limited mask set sold 20 thousand pieces in nine minutes.

[22] In January 2017, Vogue Korea released a pictorial with Sehun wearing products from the Moncler Gamme Bleu 2017 Collection.

[25] Sehun became the ambassador for the Italian luxury fashion house Zegna's clothing line XXX alongside Chinese singer and actor William Chan.

He then modeled for the brand's 2020 Spring/Summer Menswear Collection, and the pictorial and fashion films were released through W Korea's March issue.