Callan (TV series) is run by Colonel Hunter. ("Hunter" is a pseudonym for the current Section Chief, like the C of SIS.) The Section removes those who pose a danger to the "innocent" by persuasion, blackmail, extortion or death. David Callan had been the Section's top operator but he had become too curious about his targets and the rationale for their removal. The Section considered him vulnerable, volatile and dangerous and had laid him off to a dead-end book-keeping job for an ungrateful employer. ABC then commissioned a series of six episodes in 1967. In the first episode Callan rejoins the section in
Callan, County Kilkenny Callan, County Kilkenny Callan () is a market town in County Kilkenny in Ireland. Situated 16 km (10 mi) south of Kilkenny on the N76 road to Clonmel, it is near the border between County Tipperary. It is the largest town in the county, with a recorded population of 2,330 (census 2011). Callan was founded by William the Marshal in 1207 and reputedly gets its name from the High King of Ireland, Niall Caille. It is reported that while at war with the Norsemen the High King arrived in Callan to find that its river was in flood. The King