So far, two girls have been confirmed, former Miss World finalist Cass Wood and Perth youth worker Brooke Blurton.
Cass, a surfer and Rugby 7's player, has already revealed she's met Nick before.
'I actually know him,' she revealed, refusing to confirm if anything romantic has ever happened between them.
'Let’s just see what he has to say,' she continued, before adding: 'I’m hoping the fact that we know each other is an advantage, but at the same time he does know me so he might want to get rid of me!'
23-year-old Brooke Blurton, who, despite being a rugby fan and being shown entering the mansion holding a rugby ball, didn't recognise the famous former Wallabies player.
Cummins didn't seem fazed though, calling Brooke 'refreshing.'
Catch The Bachelor Australia on Channel Ten from August 15th.