The kitchen that was used for Daniel Hardman's kitchen is also the same one used for Jessica Pearson's as well as the kitchen in Rachel's parents' house.
Harvey quotes the movie/ Tv show The Highlander at Daniel Hardman' s wife Alicia's funeral saying " There can be Only One " . Gabriel Macht 's Father Stephen played Alexei Voshin on season 1 episode 9 Sea Witch of the Highlander TV Series .