Career
Coonan was brought up in Haringey, in north London, moving to Plymouth, Devon in his teens, where he took up acting lessons. He trained at the London Academy of Music and Dramatic Artist After graduating, Coonan spent over ten years working almost exclusively in theatre, working with companies including The National Theatre, The Royal Court Theatre and Howard Barker"s theatre company, The Wrestling School.
Coonan then had roles in various television series, including a wrongly convicted murderer in Silent Witness, an investigating policeman in the British Broadcasting Corporation crime drama Mayday, and a violent alcoholic in Mike Leigh"s revival of his classic play Ecstasy, which Leigh directed.
In 2013, Coonan joined the cast of the British Broadcasting Corporation soap opera EastEnders, playing Carl White, having previously played David Priors in 2011. He was originally contracted to appear in 28 episodes as Carl over a six-month period, but filmed over 60 episodes, departing in 2014.
Since leaving, Daniel has again returned to the stage, playing "Marco" in Arthur Miller"s classic play "A View From the Bridge" at The Liverpool Playhouse and "Black Dog" in The Royal National Theatre"s 2015 production of "Treasure Island".