The pilot was originally shot for streaming service, Hulu, who decided to pass on the pilot, and it was then picked up by rival streaming service, Netflix.
This is the second failed pilot based on the comic book series, Locke and Key, and the third failed attempt at an adaptation. The first pilot was shot in 2010 by Fox, but was not picked up by them, and screened at the following year's San Diego Comic Con. The second failed attempt was a movie adaptation by Universal Studios.
Coincidentally, Frances O'Connor, who has been cast as Nina Locke in the show, and Miranda Otto, who played the same role in the failed FOX pilot from 2011, were co-stars on the short-lived ABC series Cashmere Mafia.
IDW Publishing officially announced the partnership with HULU (streaming service) for the pilot series on April 20, 2017 via social media platforms.
Megan Charpentier, Owen Teague, and Jackson Robert Scott are from It (2017) and Andy Muschietti was the director and is the director for Locke and Key.
Scott Derrickson originally signed on to direct this project but because of scheduling, he dropped out and Andy Muschietti took his place to direct Locke and Key.
This is the 3rd pilot based on the comic book series, Locke and Key, and the third attempt at an adaptation. The first pilot was shot in 2010 by Fox, but was not picked up by them, and screened at the following year's San Diego Comic Con. The second failed attempt was a movie adaptation by Universal Studios.
Jackson Robert Scott (Bode) also played in the 2017 remake of IT and its sequel; IT was created by Stephen King, whose son Joe Hill is the creator of the comics on which this show is based.
The Locke House exterior and interior is completely built from scratch by Netflix.
The original comic book takes place in Lovecraft, Massachusetts, which is a tribute to H.P. Lovecraft, a 19/20th century author of gothic horror stories. It was changed to Matheson in honor of writer Richard Matheson, whose work provided much of the inspiration for the original comic.
In the final episode of season 1, the ambulance driver with the beard is Locke and Key creator Joe Hill.
When initially being shown around Key House, mention is made of an ancestor called Devon Locke. In British horse racing, Devon Locke is the name of a horse, owned by the Queen Mother, that was winning the Grand National steeplechase by a huge distance. It inexplicably faltered close to the finish line and was overtaken. "Doing a Devon Locke" is a term for blowing a huge advantage.
Carlton Cuse and Meredith Averill serve as co-showrunners.
The whispers is a plot device in "Locke & Key." The whispers is also a plot device used prominently on Carlton Cuse' other show "Lost."
Kinsey's head mall is the same as Starcourt Mall from Stranger Things, another Netflix show.