King made his Wanderers first-team debut against West Ham United at the London Stadium as the Whites exited the Carabao Cup in September 2017.
He started his senior footballing career at Altrincham, where his uncle John King had been a former playing hero and manager.
Following a brief loan stint with Prescot Cables, he moved to Nantwich Town in September 2014 before going on to join Kendal Town in October and Trafford in January of 2015.
In September 2015 he moved to Ashton United before signing for Witton Albion in March 2016.
After moving to Droylsden in August 2016, he joined Wanderers later that year, but the club's transfer embargo prevented him from playing for the Trotters` first-team.
Impressing for Bolton's under-23s side, his professional contract was extended in July 2017 with the versatile midfielder then impressing for Phil Parkinson's side in pre-season.
After the embargo was lifted in September, King was handed his Wanderers debut with a maiden Championship appearance following a week later against Bristol City.
He has now played three times in the senior side.