Whenever Dr. Roget (Charles Dance) is listening to music it is music from the score composed by Brian May for the original 'Patrick' (1978) picture.
The surname of Ed (Damon Gameau), as revealed by nurse Kathy Jacquard (Sharni Vinson), is ''Penhaligon''. This is a reference to the last name of actress Susan Penhaligon who played nurse Kathy Jacquard character in the original 'Patrick' (1978) picture.
First sex scene in a feature film of Australian actress Sharni Vinson.
Lead cast members Charles Dance and Rachel Griffiths each both worked two weeks.
One of two movies of producer Antony I. Ginnane made during the 2010s which were both remakes of one of his earlier pictures. 2013's 'Patrick' is a remake of 1978's 'Patrick' whilst 2014's 'Turkey Shoot' aka 'Elimination Game' is a remake of 1982's 'Turkey Shoot' aka 'Escape 2000'. The two remakes were made and first released in consecutive back-to-back years of 2013 and 2014.
María Mercedes: The actress, who previously had played Nurse Panicale in the original 'Patrick' (1978) picture, as the doctor of Ed Penhaligon (Damon Gameau).
Richard Franklin: The late director of the original 'Patrick' (1978) appears in a portraiture painting in an early scene with cast members Rod Mullinar and Charles Dance.
Grant Page: The movie's stunt co-ordinator, who previously worked as a stunt-man on the original 'Patrick' (1978) picture, as a man with a beard at the pub. Director Mark Hartley wanted to make him up like his bearded villain character from 'Road Games' (1981) which was directed by original 'Patrick' (1978) director Richard Franklin.
Carole-Ann Aylett: The actress who played the mother of Patrick in the original 1978 Patrick picture as a Barmaid.