Steve O'Brien is an SFX and Doctor Who Magazine writer who appeared on the documentaries Getting Blood from the Stones, Putting The Shock Into Earthshock, The Secret of the Labyrinth and When Worlds Collide. He has contributed to the charity reference book Behind the Sofa: Celebrity Memories of Doctor Who and also co-wrote BBC Books' Whographica alongside Simon Guerrier.
He edited the fanzines Peladon and Purple Haze.
He has written about Big Finish for The Guardian.