Mulvey was born in New Zealand, and is of Maori and European heritage. His family moved to Sydney, Australia when he was eight years old. He is best known for his roles as Mark Moran on the popular Australian drama Underbelly, and as Bogdan 'Draz' Drazic in Heartbreak High. Mulvey attended Beacon Hill High School (New South Wales) along with other Heartbreak High cast members Jon Pollard and Alle Brunning.

Mulvey was injured in a serious car accident in 2003, in a head-on collision at 100 km/h. He was trapped in the vehicle for almost an hour until he could be freed from the wreckage. The midsection of his face collapsed, an incision was made from ear to ear over the top of his scalp, his face "pulled down" and 17 titanium plates were then inserted to repair the fractures to his face and jaw. His left knee and ankle were badly fractured and he lost vision in one eye.

Il est un acteur australien. Sa famille a déménagé à Sydney, en Australie, quand il avait huit ans. Il est surtout connu pour ses rôles de Mark Moran dans le drame australien populaire 'Draz' Drazic dans "Hartley Cœurs à vif". Mulvey a fréquenté le Beacon Hill High School (Nouvelle-Galles du Sud). Mulvey a été blessé dans un grave accident de voiture en 2003, lors d'une collision frontale à 100 km/h. Il a été piégé dans le véhicule pendant près d'une heure jusqu'à ce qu'il puisse être libéré de l'épave. Après son rétablissement, il enchaîne les rôles dans des séries télévisées australiennes. Puis, à Hollywood, pour des personnages de terrain, souvent impassibles et durs à cuire.