Kim says "great another ER fan" in the skateboarder scene. Third Watch and ER would crossover in a two-parter, Brothers and Sisters (2002) and Unleashed (2002),with Susan Lewis coming to New York and working with Bosco and Yokas.
Amy Carlson and Robert Clohessy (here playing antagonists Alex Taylor and Danny Gamble) would later be cast as main characters on Blue Bloods (2010), another show set in New York but revolving mainly around the police department.