After being cast in Spartacus (2010), he and Andy Whitfield became inseparable and remained so until Whitfield's death in 2011. Courtney remains close to Whitfield's wife and children.
He graduated from the Western Australian Academy of Performing Arts (WAAPA).
Was in a relationship with Gemma Pranita from 2006 to 2014.
In 2008, Courtney had a lead role in the hit Australian series "Packed to the Rafters" and a guest lead in the popular "All Saints." He was in the comedy feature To Hell & Bourke and several short films.