* FakeNationality: American Creator/ElisabethMoss, Australian Thomas M. Wright and Swedish-Danish Creator/DavidDencik all play Kiwis.
* PlayingAgainstType: In the second season, Creator/GwendolineChristie, known for her charismatic ActionGirl roles, plays a female cop who is neurotic, a bit bumbling, downtrodden by her married boyfriend, and desperately wanting a child. She is also [[spoiler:ambushed and seriously injured by a suspect]].
* SignificantDoubleCasting: It's easy to miss, but Steve (who is only heard as a voice over the phone) and Pyke are both played by Ewen Leslie.
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