She has also appeared in advertisements for Huawei and Matalan and is frequently in CBBC shorts such as Lifebabble and Whoops I Missed the Bus with her sister.
[citation needed] In 2016, Mandeville also appeared as a panelist in the CBBC show, The Dog Ate My Homework.
In 2015, she modeled a Star Wars themed prosthetic arm for Fashion Finds the Force, designed by Open Bionics.
[3] She also modeled a prosthetic arm for Sophie de Oliveira Barata's "Alternative Limb Project" from which Mandeville was featured in the New York Times.
She began dating Ryan Anthony, a cyber security engineer, in May 2016,[7] and the couple married in August 2019.
[10] In November 2024, Mandeville announced in a YouTube video that her and Anthony are expecting a baby girl in March 2025.