* ActorSharedBackground: Frieda Petrenko is from UsefulNotes/{{Ukraine}}, and so is her actress Creator/OlgaFedori. Fedori had to emphasise her Ukrainian accent for the part.
* CharacterOutlivesActor: Sandy Harper is still alive off-screen in Australia, despite the 2003 death of actress Laura Sadler.
* FakeNationality: Henrik Hanssen is Swedish; his actor Guy Henry is British.
* TheRedStapler: Jac Naylor's outfits, which have become suddenly fashionable.
** Plus the unnamed tan-skinned nurse's civilian wear too...
* RecastAsARegular: In 2001, Creator/TessaPeakeJones appeared in two episodes as Maggie Latham. Come 2012, she returned in a slightly bigger role as Imelda Cousins, who returned in 2016.
* StarMakingRole: For Louise Houghton, who appeared as Jenny Elwood between 2009 and 2010 in the show. [[http://www.uk.castingcallpro.com/view.php?uid=156267 This website link has some info about her.]]
** As of January 2013, it became this for Rachelle Lynne and Kate Webb, who are considered MsFanservice.
* WagTheDirector: Rosie Marcel was NOT happy about Jac being killed off in the last episode, but did at least manage to argue for Joseph Byrne to make a cameo for some closure.
----