He has appeared in numerous productions throughout the UK, including West Side Story, Seven Brides for Seven Brothers, An Inspector Calls, Outside Edge, They Don't Grow on Trees, Confusions, Bells Are Ringing, Cabaret, Me and My Girl, How to Succeed in Business Without Really Trying, a national tour of Peter Nichol's award-winning play Blue Murder, a national tour of Four Nights in Knaresborough and most recently a Hull Truck Theatre residency and national tour of Richard Cameron's hit play The Glee Club.

John's television credits include: DC Cody in Coronation Street, James Ogley in Emmerdale, PC Steve Watson in Noah's Ark, Sgt Bob Ellis in Undercover Customs, Sgt Major Atlee in Dalziel and Pascoe, Dave Edwards in Where the Heart Is, Rob Bonner in Cold Feet, DS Reynolds in Hollyoaks, Paramedic Steve in Clocking Off, Peter Phillips in Always and Everyone, Keith Palmer in Merseybeat, PC Joe Sambrook in The Bill, Steve Brooks in Crossroads, Alan Gordon in Brookside, Ansell in EastEnders, Tony in All About Me, Dean Forster in Casualty, Daniel Carey in "Flood", and Captain Steve Simmonds in "Hostage", two episodes from the BBC series Crisis Command, Simon Marshall in the TV movie All in the Game, Bill Durrant in the second series of Afterlife, Martin Foreman in the last ever episode of Dream Team, 3 episodes of Coronation Street which included the 50th anniversary live episode as Watch Commander John Dow, and most recently DS Andy Nicoll in Catch Me If You Can for the BBC.

He has also appeared in various commercials and corporate videos including Hallmark Cards, New York Life Assurance, British Telecom, Ariel Liquitabs, Redrow Homes, Saniflo Water Systems, The Pro Chef Quatro and Nudo knives both for JML, Sainsbury's, Health and Safety videos for Tarmac, British Telecom & Travis Perkins and assorted promotional material for the Brazilian company Covance and the French Canadian company Saint Gobain.

John can also be seen playing Metal's Dad in the Jason Statham feature film Blitz, Doug Harman on the Halifax Building Society Homebuyers Guide, providing the voice for the superhero Rodrigo in Hero for Hire on the PlayStation, and numerous other voice overs for the NSPCC, National Westminster Bank, Legoland Windsor and Kelloggs.