Two months after making his Premier League debut, Dowell signed a three-year contract with the club, keeping him until 2019. In the 2016–17 season, Dowell was a member of the Everton U23 squad to win the inaugural Premier League 2 title, in which he made the total of 22 appearances and scoring 5 times. His performance throughout April won him April’s Premier League 2 Player of the Month.

On 11 July 2019, Dowell joined Derby County on a season-long loan.

On 27 May 2019, Dowell was included in England’s 23-man squad for the 2019 UEFA European Under-21 Championship.

On 28 December 2018, it was announced that Dowell would join Sheffield United as of 2 January 2019 on loan for the rest of the season. On 28 April 2019 United were promoted to the Premier League.

On 3 August 2017, Dowell signed on a season-long loan with Championship side Nottingham Forest.

Dowell made his Nottingham Forest debut, coming on as a second-half substitute, in a 1–0 win over Millwall in the opening game of the season. He scored his first goal for Forest in a 4–3 win at Brentford on 12 August 2017. Since making his Nottingham Forest debut, he became a first team regular. Dowell scored again on 30 September 2017, in a 2–1 win over Sheffield United. Four weeks later, on 28 October 2017, he scored his first ever hat-trick, in a 3–2 win over Hull City. After the match, Dowell’s performance was praised by local newspaper Nottingham Post and the club’s supporters. However, Mark Warburton was sacked as Forest manager on 31 December 2017 and was replaced by Aitor Karanka. Dowell fell out of favour under the new manager and struggled to hold a place in the starting eleven. He played just 59 minutes during the last eight games of the season.

Following the end of the 2017 FIFA U-20 World Cup, Dowell was called up to the England U21 squad, for whom he made his debut in a 1–1 draw with Netherlands U21 on 1 September 2017.

After being given a number 51 shirt in the 2015–16 season, Dowell, however, suffered ankle injury that saw him sidelined for two months. He scored on his return for the Everton U21 on 6 December 2015, in a 3–1 win over Liverpool U23. Dowell went on to score nine more goals for the reserve side, including a stunner against Southampton U21 and a hat-trick against Leicester City U23. On 30 April 2016, he made his Premier League debut as an 87th-minute substitute for Ross Barkley in a 2–1 home win over Bournemouth. Dowell then started the final game of the 2015–16 season against Norwich City at Goodison Park.

Born in Ormskirk, Lancashire, Dowell joined Everton’s academy at the age of 7. After progressing through the ranks and the reserve side, he signed a scholarship with the club in June 2014. He then scored in a friendly for the Everton U21 side, in a 1–0 win over Rhyl on 26 July 2014.

Dowell made his debut for the club on 11 December 2014, replacing the injured Christian Atsu 11 minutes into a UEFA Europa League group match against FC Krasnodar at Goodison Park. Everton, who had already advanced into the next round, lost 0–1. With his only first team appearances of the season, he signed his first professional contract with the club.

After representing England at lower youth levels, Dowell was selected for the England under-20 team for the first time, making his debut in a 1–1 draw against Brazil alongside Everton teammate Dominic Calvert-Lewin. In May 2017, Dowell was selected for the England U20 in the 2017 FIFA U-20 World Cup. After setting up two goals in a 3–0 win over Argentina on Matchday 1 of the group stage, he scored the only goal against hosts South Korea, ensuring a place in the second round for England. He also started in the final, in which England beat Venezuela 1–0 for England’s first triumph in a global tournament since their World Cup victory in 1966.

Kieran O’Neill Dowell (born 10 October 1997) is an English professional footballer who plays as a midfielder for Wigan Athletic on loan from Premier League club Everton and England under-21 team.