Born in Durham, Mitchell Jack Killeen agreed to a two-year deal with Essex Cricket in August 2025 which would see him move south to Chelmsford upon the conclusion of the 2025 season.
Yet to make his debut for Essex, Killeen made his List A debut for Durham at the age of 17 in August 2022 against Nottinghamshire, where he took 1-17 and scored 17 off 26 balls batting at number eight.
After his List A debut, the young Durham-born bowling all-rounder had to wait a few years for a first-class opportunity, which came against Zimbabwe A in Harare on March 12 during Durham's tour of Zimbabwe. In that match, Mitchell scored 21 off 41 balls and took 2-12 from six overs.
The son of former Durham cricketer and England bowling consultant Neil Killeen, Mitchell made his County Championship debut for Durham earlier this season against Somerset at Chester-le-Street. He made an immediate impact, claiming a five-wicket haul in the first innings and finishing with figures 5-36 from 10 overs, including two maidens. In the second innings he continued to impress, taking 1-67 from 20.1 overs with two maidens.
Mitchell Killeen has represented England Under 19s on half-a-dozen occasions, taking eleven wickets during 2022 and 2023, playing and training alongside Essex Men's Luc Benkenstein, Charlie Allison and Noah Thain.
At the end of the 2024 season, Mitchell was awarded Durham's Second XI Player of the Year award.
