In surgery, Owen complains about everything being backwards, like driving in London. Kevin McKidd is in fact from Scotland where they drive on the left side of the street like they do in London.
In this episode Camilla Luddington's character Dr. Jo Wilson wears a Tinkerbell fairy costume for Halloween, this ironic because the actress had previously played the fairy Claudette in the HBO hit series TrueBlood.
Thriller is a song by Michael Jackson.