Born in Blackpool, Lancashire, Flood was educated at Rossall School, near Fleetwood.
His first major role came in 2005 when he was cast as Josh Ashworth in Channel 4 soap opera Hollyoaks.
In February 2010 he was removed from the series along with 15 existing cast members by incoming producer Paul Marquess.
He appeared as a young cyclist whose leg was broken in an attack by local yobs in an episode of Casualty which first aired on BBC1 on 4 December 2010.
Flood is a fan of his hometown football club Blackpool and in September 2009 appeared, alongside seven other Blackpool supporters, on Sky Sports Saturday-morning football show Soccer AM as part of the "Fans of the week".