Education
Born in Norbury, Harriott attended Saint Andrew"s Church of England High School in Croydon.
Born in Norbury, Harriott attended Saint Andrew"s Church of England High School in Croydon.
He is a product of the Charlton Athletic academy. He came on as a late substitute for loanee Dean Parrett. He then started his first game for the club two days later on the last game of the 2010-2011 season against Hartlepool.
Harriott was one of the six different scorers for Charlton that match.
On 17 May 2013, Harriott signed a new three-year contract with the club On 28 August 2015, Harriott was loaned to Colchester United, until 2 January 2016.
On 2 May 2013, Harriott was named in manager Noel Blake"s England under-19 team to face Belgium, Georgia and Scotland in the 2013 Union of European Football Associations European Under-19 qualification round.
He made his debut for the Addicks on 25 April 2011 in a League One game against Rochdale at The Valley, which ended in a 3–1 win for Charlton. Although he did not feature for the Charlton first-team in their 2011-2012 promotion season, he made his Championship debut after coming off the bench as a 74th-minute substitute for fellow academy graduate Scott Wagstaff in a 2–1 win against Blackpool. He then scored his first senior goal on 9 March 2013, in a 1–0 win away to Huddersfield Town. He scored his second goal for Charlton in a record-breaking 6–0 away win for the Addicks against nine-man Barnsley on 13 April 2013.