The actor and his sister initially aimed to raise one million for their campaign the Big Heart Project, but they’ve since raised their goal to $10m after hitting their target.
Connie recently made the heartbreaking decision to end her cancer treatment.
The 40-year-old has been battling the disease on and off since the age of 11, and now, after a double mastectomy and gruelling rounds of chemotherapy and radiation, the side effects have become too much for the brave mum-of-two.
Connie was first diagnosed with bone cancer aged 11 and then went on to discover a tumour in her womb at 22 and was diagnosed with breast cancer seven years ago.
Speaking to the Canberra Times, the mum said: 'So that's 10 to 11 years of cancer treatment in a 40-year lifespan and I guess my organs are just saying, "No more. No more"
'Basically, it wasn't my choice. I can't have any more chemo medically. So that's a game changer,' she said.
'I asked what to expect and at some point the tumours will grow back and grow bigger and I'll go into liver failure and I'll sleep a lot. Apparently it's quite peaceful.'
Samuel and Connie – who with just one year between them have been inseparable since childhood – co-founded the charity Love Your Sister, which aims to raise money and raise breast cancer awareness.
Over 2013 - 2014 Samuel, raised over one and a half million dollars by uni-cycling across Australia - breaking the then-Guinness World Record for the most distance travelled on a one wheeler.
Donate to Love Your Sister here.