On television, he is known for his roles in the BBC One miniseries Gold Digger (2019) and the Netflix series Shadow and Bone (2021–2023).

[4][5] Renaux began his career in modelling, working for Topman, Nasir Mazhar, Moss Bros, and Men's Fashion Week.

[8][9] Renaux had small roles as Alex in the film Voyagers and Bobby in Marvel's Morbius.

[10][11] In October 2019, it was announced Renaux would star as Malyen "Mal" Oretsev in the 2021 Netflix series Shadow and Bone, an adaptation of the overlapping fantasy book series Shadow and Bone and Six of Crows by Leigh Bardugo.

Renaux announced through a post on Instagram in June 2020 that he and his girlfriend Annie O'Hara were expecting a child.