In 1986, as a child actor, Pinnock starred in the fantasy drama TV serial Mr Magus is Waiting for You, based on the novel by Gene Kemp and following the adventures of four young children who get mixed up with a mysterious Magician. He then went on to play guest roles in television programmes like Grange Hill, EastEnders, The Bill, Dalziel and Pascoe, Footballers' Wives and Casualty, to name but a few. TV movies followed such as Kingdom of The Blind with Clive Owen and Diamonds with James Purefoy. Theatre work included As You Like It at Stafford Castle at the Staffordshire Shakespeare Festival, followed by working with Directors like Kathy Burke in Hampstead Theatre's production of Born Bad and David Grieg and Marisa Zanotti in the Edinburgh Festival official production of the critically acclaimed San Diego and most recently Topdog/Underdog in Glasgow's Citizens Theatre.