Actor Allusion: Father Bryce ends his sermon with "Idle hands are the devil's playground." and gives a knowing smile at the camera. Devon Sawa, who plays Bryce starred in the 1999 horror comedy Idle Hands, where the aforementioned quote is a minor plot point.
Actor-Shared Background: Actors Teo Briones and Lexa Doig both have Filipino background. After Briones was cast as Junior and Devon Sawa was already set to play his and Jake's fathers, Mancini deliberately chose Doig for Junior's mother to relate their background to the roles.
Amateur Cast: Zig-zagged in the Japanese dub: With the sole exceptions of the returning voice actors from the films, Logan Wheeler (Hisao Egawa), Devon Evans (Nikray Farahnaz) and still unknown role voiced by Fairouz Ai, the rest of the dub cast is fielded by mainly rookie voice actors.
Chronically Killed Actor: Devon Sawa has played several roles in the show, and they've all ended up being killed. It remains to be seen if a character he plays will ever live through a season finale.
Contractual Immortality: Averted in an interesting way. The actors who play characters that die often appear again in a new role, so just because an actor is going to reappear doesn't mean the character they're currently playing is going to survive - and since Chucky kills at least one person every episode, the odds that any given character will survive an entire season are not good.
Dawson Casting: Unlike the other teens (who are played by actual teenagers), Grant Collins is played by 22-year old Jackson Kelly.
Chucky's Good Guy doll voice is now performed by child actor Nick Fisher, taking over from Edan Gross from the first three films and Michelle Ruff from Curse of Chucky.
The human bodies of Glen and Glenda Ray are now portrayed by non-binary actor Lachlan Watson, taking over from Beans El-Balawi and Kristina Hewitt respectively from Seed of Chucky. As the voice of the twins, Watson also replaces Billy Boyd, who voiced them in that film, though Boyd does return to voicing them in doll form.
Devon Sawa (known for his role as Alex Browning in Final Destination and Casper in Casper) plays a dual role in the first season. He is both Jake's abusive father Luke, and Luke's twin brother and Jake's uncle, Logan. That makes sense, but as a running gag, he's also brought back in Season 2 as Father Bryce and in Season 3 as both President Collins and his body double, who as far as we know are not related to Luke and Logan or to each other.
Real Life Writes the Plot: The arc of season 3, with Chucky becoming terminally ill and being unable to transfer his soul into a new body, was conceived in part as a way of allowing Brad Dourif to officially retire from the role so that he could retire from acting for good.
Billy Boyd returns in the season 2 finale to voice GG in their doll form.
In the Japanese dub, Bin Shimada, Mika Doi, Chie Nakamura, Shinobu Adachi and Mitsuru Fujiwara reprise their roles as Chucky, Tiffany, Nica Pierce, Kyle and Andy Barclay respectively from the dubs of the films.
Don Mancini revealed in a Variety interview Season 2's "Death On Denial" was originally going to have a choreographed musical number of "We Belong Together" performed by Glen and Glenda but had to be scrapped due to a COVID outbreak with some crewmembers forcing the schedule to change.
In a Dead Meat Interview Chucky Series Aftershow Episode 208 "Chucky Actually" it was revealed by Don Mancini that one point he considered the idea of Good Chucky actually staying good and valiantly sacrifing himself in an effort to save someone's life, but he changed it as it didn't feel right. In the show, the brainwashing wears off by around Episode 6, to show that deep down, Chucky was, is and will be evil, and no amount of brainwashing would change that.
Write Who You Know: Don Mancini has admitted in interviews that the rocky dynamic between Jake and his father Luke is based on the strained relationship he had with his own father growing up due to his sexuality.
You Look Familiar: Michael Therriault, who played Dr. Foley in Cult of Chucky, now plays Lexy's father.
General Trivia
Jake demands that Chucky talk to him in much the exact way Karen (Andy's mother) did in the original Child's Play movie. Instead of insulting him, however, Chucky slaps him hard in the face.
According to Don Mancini, the series creator, the favorite Chucky doll design of a majority of fans was that of Child's Play 2, which is why the series' Chucky most closely resembles that version.
, the uncredited body double for young Charles Lee Ray.