[21] Eric Balfour confirmed Emma Lahana's departure due to family emergency, leading to her character being written off, a fate that was revealed in "Speak No Evil" even though she was originally not going to be killed.

In addition, Adam "Edge" Copeland's real-life best friend (and former WWE tag team partner) Jay "Christian" Reso guest starred for one episode and is slated to appear in a couple more in the second half.

[6][25] It was announced that Lucas Bryant would make his directorial debut in the seventeenth episode of the season, originally titled "Look" before it was changed to "Enter Sandman".

[26] Showrunner and executive producer Gabrielle Stanton explained that the team was already prepared for the end after they filmed both parts of the fifth season in 2014 when Haven's cancellation was announced in August 2015, but promised that the final episode would satisfy fans.

[27] However, a year prior to the cancellation, season five being the show's last was first hinted by Eric Balfour when he told TVLine that one of the producers was considering about shooting two different endings at the time production was still filming.