Growing up in the South of France, Mortimer started to perform at a young age as a street performer. He studied at the Music and Dance in La Rochelle, Acting and Mime at the Jacques Lecoq School in Paris and in London. He is the recipient of several international prizes for Magic rewarding his shows. (1st place in Italy 2001, 3rd place in France 2002).

Mortimer achieves public recognition in France in 2006 with his show »L’Ombre Orchestre » (The Shadow Orchestra) which he performed in Paris and worldwide more than 1000 times. Xavier Mortimer composes the music for his own shows, and for other shows as well. In 2012, he created the character Sneaky for the newest Cirque du Soleil’s show: MICHAEL JACKSON ONE, which is currently performing in Las Vegas. Between 2013 and 2018, while performing in Vegas, Xavier has been a guest on mainstream TV shows all around the world. He opened his show, Magical Dream, at Planet Hollywood Casino Resort in Las Vegas in 2016 before moving to the Bally’s in 2018 due to the success of the show. From 2018 to 2022, Mortimer was voted Best Magic show in Las Vegas by the Las Vegas Review Journal, and voted Best Family Friendly show from 2019 to 2022. In September 2020, he fools the duo Penn and Teller in the show “Fool Us”. In 2020 Xavier started publishing his Magic performances on Social Media and gathered over 13 billion views as well as more than 25 million followers.

Since 2023 Xavier joined the show « The Illusionists » for a World Tour.