| Billy is the second tallest Australian cricketer, with Phil Alley being the tallest at 6’10”. |
| He used to play Australian rules football like his father, who played for the Footscray Football Club in the Victorian Football League before pursuing cricket. |
| In 2011, Billy debuted for Australia in ODI cricket, impressively taking 4 wickets against Sri Lanka while conceding only 37 runs. |
| Despite being named in the Australian Under-19 cricket team for the 2012 and 2014 Under-19 World Cups, he missed both tournaments due to foot injuries. |
| During the 2014-2015 season, Queensland offered him a contract, which he couldn't fulfill due to stress fractures in his back. |
| Billy played his first match for Queensland in 2015 against Tasmania in Sydney. |
| In 2016, he missed a full contract offer from Queensland for the 2016–17 Matador BBQs One-Day Cup due to back injuries. |
| He made his ODI debut for Australia against Pakistan in Brisbane in 2017. |
| Royal Challengers Bangalore bought him for Rs. 30 lakh in the 2017 IPL auction. |
| Sunrisers Hyderabad acquired him for Rs. 50 lakh in the 2018 IPL auction. |
| In 2018, Yorkshire County Cricket Club enlisted him to participate in the 2018 Vitality Blast T20 cricket league in England. |
