 Christine Willes, who plays the part of Agent Kosseff, reprises her role; she originally appeared in the earlier episode "Irresistible".During production of the episode, the producers "agonized" over both the teaser (given that it revolves around a child being killed by a tram) and the episode's over-all bleakness.Fox's standards and practices department, on the other hand, took issues with the initial cut of Steve's strangulation scene; in the end, the sequence was kept but the actor's face was obscured to "soften the impact".