She is of Anglo-Indian descent, her parents both having emigrated from Chennai (the capital of Tamil Nadu, India) to Melbourne.

[6][7][8] King followed her brother's footsteps by pursuing an interest in cricket after trying out different sports such as tennis, softball and baseball.

[9] King was handed her first rookie contract at the age of 16 in 2012 with VicSpirit in the Women's National Cricket League and three years later down the line, she bagged a surprise call-up to Melbourne Stars for the inaugural edition of the WBBL in 2015–2016 season.

[21] She was included in Ashes squad as replacement to injured Georgia Wareham and Sophie Molineux but she was picked up in the squad over Amanda-Jade Wellington as a surprise package with selectors opted to leave out Amanda-Jade Wellington in order to allow her play for Australia A team.

[30] She was the second highest wicket-taker for Australia during the successful 2022 World Cup campaign for the Aussies as she picked up 12 wickets in the tournament at 24.50 in nine matches including a spell of 3 for 64 against England in the all important final.

[31][32] She was also the fourth joint highest wicket-taker during the tournament in what is considered to be a career defining performance for her which would later make her first-choice player in the Australian team.