Thames Television premiered Special Branch in September 1969, with the episode "Troika". Rowland played the part of Det. Chief Insp. Felding, an incidental character in the plot. When
Special Branch was revamped for a third series to be made by
Euston Films in 1973, Rowland came on board as Sergeant Bill North, sidekick to Inspector Craven (played by
George Sewell). The mix of Craven's working-class character with the rather more upper-class North made for some infrequent minor class commentary, though they forged a strong and respectful working relationship. North would tend to be overshadowed in S3 episodes where
Patrick Mower made guest appearances as Craven's recently promoted equivalent, Detective-Inspector Haggerty. Mower joined Special Branch as full-time co-star for Series 4, with DCI Haggerty and Craven developing a more antagonistic partnership which was of more interest to the viewer. (This dynamic would be carried on with the Regan-Carter relationship in Special Branch's successor,
The Sweeney.) To make way for Haggerty, the character of North became subject to a mental breakdown as series 3 drew to a close and would leave Special Branch. There would be one final appearance for the character in series 4, episode 2 "Catherine The Great", where Craven ad Haggerty are on the hunt for an assassin. North - now promoted to a Detective Inspector in CID - is canvassed for assistance. == Further television work ==