Stephen Gallagher (born 13 October 1954) is an English writer.Gallagher was born in Salford, Greater Manchester. He has written several novels and television scripts, including for the BBC television series Doctor Who — for which he wrote two serials, Warriors' Gate (1981) and Terminus (1983)—as well as for the series Rosemary & Thyme and Bugs, for two seasons of which he was script consultant along with Brian Clemens. He adapted his own novel Chimera as a miniseries of the same name shown on ITV and directed the adaptation of Oktober as well as writing the feature-length episode The Kingdom of Bones for the BBC series Murder Rooms. Wikipedia