He spent 18 months scoring more frequently at Leyton Orient, before moving in 2015 to Kerala Blasters in the Indian Super League, leaving after one season to join Hibernian.
On 13 September 2003, at the age of 17, he was included in a matchday squad for the first time by manager Ray Mathias, coming on as a late substitute for Ryan Taylor in a goalless Second Division match against Peterborough United at Prenton Park, and had a 20-yard shot saved by their goalkeeper Mark Tyler.
He started the next season on 10 August 2004 by scoring his first Prenton Park goal in a 2–1 home win against Hartlepool United, where he was shown a second yellow card and was sent off for jumping into the crowd.
He made several appearances at the start of the following season including his FA Cup debut which was a 2–1 loss away to future club Bradford City.
[7] He spent the rest of the season at Spotland and scored three goals in 21 appearances, including a last-minute equaliser for a 1–1 draw at Rushden & Diamonds on 15 April.
[8][9] In July 2006, Rochdale made the move permanent for an initial fee of £25,000, with manager Steve Parkin seeing Dagnall as a replacement for top scorer Grant Holt, who had signed for Nottingham Forest for £300,000.
[21] Dagnall scored six goals in the first 10 league games at the start of the 2009–10 season, including a brace against Torquay United on 12 September 2009.
[25] On 2 June 2010, Dagnall joined Championship side Scunthorpe United on a free transfer, signing an initial three-year deal.
[49] On his debut for the Londoners at Crewe Alexandra on 18 January, he came on as a substitute for Robbie Simpson at half-time and scored twice in Orient's 2–1 win, which took them to the top of League One.
[51] 12 days later, in the final at Wembley Stadium, he came on in the 76th minute in place of Kevin Lisbie, and had his attempt saved by Adam Collin as the O's lost the penalty shootout.
[55] Rejecting an offer to extend his contract, Dagnall left Orient to join Indian Super League side Kerala Blasters on 10 June 2015, saying "I've enjoyed my 18 months with the club and the fans were very welcoming, but this will be a new challenge for me.
He made his debut on 6 October, as his new team began the season with a 3–1 win over NorthEast United FC at the Jawaharlal Nehru Stadium, being replaced by compatriot Sanchez Watt at half time.
[58] On 23 December 2015, Dagnall joined Scottish Championship team Hibernian on a short-term deal until the end of the 2015–16 season.
[65] The following season, he made 37 appearances, scoring seven goals, but, on 9 May 2018, Crewe manager David Artell announced Dagnall would not be offered a new contract at the club.
[66] On 19 June 2018, he signed a one-year contract with Bury to link up once again with Shakers manager Ryan Lowe, whom he had played alongside when the two had been teammates at Crewe.
He made his debut the following day in a 1–0 defeat to Atherton Collieries where Dagnall was shown a straight red card for his involvement in a melee.
[71] On 10 June 2021, Dagnall joined ninth tier Midland Premier League side Hanley Town, linking up with former-Yeovil teammate Carl Dickinson who had been appointed manager.
[72] In October 2022, Dagnall joined Northern Premier League side Stalybridge Celtic[73] he made his debut against FC United of Manchester and would go on to score 5 goals in 26 appearances.