On "Blue Bloods," even the non-law enforcement Reagan family members have high stakes jobs and their behavior is held to a higher standard. In season 9, Sean Reagan (played by Andrew Terraciano), the youngest of Danny's kids, begins acting out when his older brother Jack heads off to college. He is caught cutting class and drinking alcohol, which becomes a point of contention within the Reagan family. Jamie suggests that Sean is acting out to keep Jack around, but in the end, it turns out that Sean just needed a healthier outlet for his frustrations. The Reagan name carries a lot of weight, so mistakes from any member of the family can have serious consequences. "Blue Bloods" airs on CBS in the USA and Sky Witness in the UK.