Dani was actually one of the proof of concept girls that producers used to present the style and mechanics to the broadcaster that this nouveaux type of TV employed.
Vogue William was cast by Producers when she accompanied her sister to the auditions. Vogue was cast when she proved to be so engaging with crew just waiting for her sisters slot.
When Louise meets Vogue in Marbella it was intended for Vogues parents to be in the scene but due to delays in the days schedule they had left by the time Louise and co turned up at Nikki Beach.
The series was originally due to feature cast from the wealthy areas of South Dublin but the producers decided to move the 'action' into the city centre as well as recast some roles due to the world financial crash and the reality of life for early 20 somethings in recession hit Ireland.