In season 4, Graham McTavish plays Father Kinley and the demon Dromos who possesses Kinley after Eve murders him to send a message to Hell.
Season 5 features Tom Ellis pulling double duty playing Lucifer and Michael as its main selling point. Noteworthy since both are main characters who frequently appear together, requiring massive editing to work it out.
The season 5 episode "It Never Ends Well for the Chicken" has nearly everyone, except for Tom Ellis, playing a new character.
Lesley-Ann Brandt plays a young Lilith. Lucifer's narration lampshades how Maze looks exactly like her mother.
D.B. Woodside plays Melvin the Magnificent, a cultist leader.
Actor-Inspired Element: It was Kevin Alejandro's idea that Dan be killed off right before what was then supposed to be the end of the show, specifically because of how unfair it was that he didn't get to put a final button on his redemption story arc, and the agonized place that it would put both Lucifer and Chloe in the finale.
California Doubling: Zig-Zagged. While the pilot episode was shot in Los Angeles, the rest of the first season and all of the second were shot in Vancouver. Averted starting with the third season when production moved back to L.A..
Tom Ellis (Lucifer) is a pretty good singer. He opens episode 6 of the first season with a very good rendition of "Sinnerman", his rendition of "All Along The Watchtower" by Bob Dylan is particularly impressive (sung in the first episode of season 2), and he sings "Eternal Flame" in "Candy Morningstar". The showing off continues into Season 4, when the first thing the viewer sees in "Everything's Okay" is Lucifer singing Radiohead's "Creep". "Off The Record" briefly makes use of his juggling skills when Lucifer juggles breast implants.
Lesley-Ann Brandt gets a chance to show off her own singing chops in "Save Lucifer" with a performance of "Wonderwall" by Oasis. "It Never Ends Well for the Chicken" has her sing two songs as the classy chanteuse Lily Rose/Lilith.
The fourth season finale opens with a dance sequence set to Kenny Loggins' "I'm Alright" which gives Tom Ellis and Aimee Garcia a chance to show off their dancing skills.
The fifth season episode "Bloody Celestial Karaoke Jam" is a Musical Episode that gives the entire cast a chance to show off their singing and dancing skills.
Casting Gag: They may not have interacted as closely as they do here, but this show isn't the first time that Charlotte and Dan's actors have been on a show together.
Channel Hop: The first three seasons aired on Fox. A month after Fox canceled it, Netflix picked it up for three more seasons. The change is immediately noticeable, since Netflix, being a streaming platform, has less stringent policy on explicit content than Fox, a broadcast network.note The first episode of season 4 alone features a look at Tom Ellis' bare buttocks within the first six minutes, while the sixth episode has the main characters visiting (and participating in) a naturist community, both content that they would have never gotten away with if the show still aired on Fox.
Downplayed with Chloe. She is 35 years old as of the season 2 episode "Quid Pro Ho", while Lauren German was 38 at the time.
In "Lucifer! Lucifer! Lucifer!", it is revealed that a seventeen-year-old Linda gave birth in 1994, which means she was born in either 1977 or 1976. Rachael Harris is almost a decade older (born 1968) and visibly older than the rest of the cast (most of whom were born in the 1970s).
Kevin Alejandro (Dan) directed the episode "Once Upon a Time" that was one of a pair of episodes shown in the last week of May 2018, the other being "Boo Normal". He also directed the season five episode "Spoiler Alert" and season 6 episodes "Nothing Ever Changes Around Here" and "Goodbye, Lucifer".
D.B. Woodside (Amenadiel) directed season 6 episode "Save the Devil, Save the World".
In "The One With the Baby Carrot", Lucifer drops the term "Lucifans" as a potential name for his lovers when informed that "Chuckle Bunnies" is a term for chicks who like to have sex with comedians.
Genius Bonus: Several. For instance, in one episode, Lucifer states that Oscar Wilde was straight before he met our titular devil. Knowledgeable viewers will know that Wilde, while famous today for his homosexuality, had sexual affairs with several women before he married. Only after his wedding did he seem to have started having sex with men exclusively (besides his wife, of course). It's theorized that one of the reasons was that he rationalized same-sex as not really cheating.
Germans Love David Hasselhoff: In the U.S., the show was never a huge hit, and got slammed by Moral Guardians who accused the show of glamorizing Satan. However, the ratings were decent enough for Fox to keep renewing the show for three seasons. The show had a much bigger audience overseas, especially in Catholic-majority countries, which is the reason why Netflix picked up the show after Fox canceled it.
Hide Your Pregnancy: Maze wears slightly looser-fitting tops in the last few episodes of Season 2, as Lesley-Ann Brandt was pregnant at the time of filming.
Lying Creator: During the filming of the Arrowverse's Crisis on Infinite Earths event, fans spotted Tom Ellis in the Vancouver area, leading to instant speculation that Lucifer would be part of the crossover. Ellis announced that he had simply been visiting a friend on set to shoot the rumors down. Sure enough, Lucifer did pop in Episode Three for a brief cameo.
Older Than They Look: Ella Lopez looks and acts like a perky 20-something. Her actress, Aimee Garcia, was born in November 1978, meaning she was 37 years old when she first appeared. She is actually the same age as Lauren German (the two nearly share a birthday, with Garcia being a day older than German) but looks far younger than the latter.
Out of Order: "Mr. and Mrs. Mazikeen Smith", "Vegas With Some Radish", "Off the Record", and "City of Angels?" were originally meant to be season 2 episodes, but they were moved to season 3. Likewise, two standalone episodes were produced at the end of season 3 with the intention of showing them in season 4, but FOX cancelled the series and later announced that they would be airing the two episodes a couple of weeks later (this was of course well over a month before Netflix ultimately resurrected the show). The two episodes ended up being somewhat disconnected from the ones before and after them; one is a What If? episode, while the other is set in a weird timeline where Chloe seems to take Lucifer's revelation of his devil face lightly, compared to her near-Heroic BSoD in the actual Season 4; however, it has been canon-welded as of "A Chance at a Happy Ending," which means that the events of the episode happened before the S4 finale and Chloe's nonchalance is about something other than Lucifer's devil face.
Tom Welling is best known for his many years playing Messianic Archetype Clark Kent. Here, he's Cain, the world's first murderer.
A doctor in a plastic mask gives a Sadistic Choice to a successful person: cut off what makes you successful, i.e. an actor's face, a surgeon's hands, etc., or an innocent person will die horribly. The man behind the mask? Tim Dekay, known mostly for playing Incorruptible Pure Pureness good guys. And because he's such a typecast actor, the viewers never see The Reveal coming.
Queer Character, Queer Actor: Like many roles of Brianna Hildebrand, her character in season 6 is implied to be interested in women when she winks at one in the episode "A Lot Dirtier Than That".
Real-Life Relative: In "My Little Monkey", Chloe's father is played by Chris Payne Gilbert, who is married to Lesley-Ann Brandt in real life.
Separated-at-Birth Casting: Rachael Harris and Alexandra Grossi honestly look more like sisters than mother and daughter, but they do have an uncanny resemblance to one another.
In "Trip To Stabby Town", Lucifer is telling Linda about the famous people who ended up in hell. His comment about Donald Trump not being dead "but he's definitely going" was an addition by Tom Ellis who was surprised that the network didn't veto it.
In "Stewardess Interruptus", after Lucifer says "Good. 'Cause the last thing I need is a Step-Dan", Kevin Alejandro improvised the answer "You say some weird things, man".
In "Deceptive Little Parasite", Maze kissing Chloe was improvised by Lesley-Ann Brandt.
Tom Ellis seems to be doing this a lot in season 3. Once an episode at least.
"They're Back, Aren't They?" included the line "Careful, I bruise like a peach" while he's getting kidnapped.
"The One With the Baby Carrot" has him noticing a giant rooster and exclaims, "That's the biggest cock I've ever seen."
"Mr. & Mrs. Mazikeen Smith" has him bopping Chloe playfully on the nose. Her reaction was also improvised in response.
According to Lindsey Gort (who plays Candy), after her Spit Take in "Vegas With Some Radish", Ellis ad-libbed "ah, so you're a squirter". Unfortunately, it didn't make it into the episode.
After three seasons, Fox decided to cancel the show. This led to major outrage, especially as the third season finale left off on a cliffhanger created specifically to get a renewal. Much rallying on social media by fans as well as some of the cast and crew to #SaveLucifer led to Netflix deciding to resurrect the show.
After the show moved to Netflix, the creators announced that the series would end after Season 5, in line with the network's usual upfront two-season deal. Two months before the premiere of the supposed final season, Season 6 — the "final final season" — was confirmed.
Maze was originally going to be played by Lina Esco, but Lesley-Ann Brandt got the part instead.
Two season 3 episodes - "Boo Normal" and "Once Upon a Time" - were supposed to be part of the potential fourth season before the show was canceled by Fox (but before Netflix picked it up). The two were screened two weeks after the season 3 finale back-to-back. Judging by "Boo Normal", it's telling that the creators originally had much different ideas for the fourth season; however, it has been Retconned into taking place sometime during Season 3, as it gets called back to in parts of Season 5B.
Lucifer was going to have an American accent, until they decided that only a Brit could get away with saying a lot of his lines without coming off as a total douche. And the appearance of Michael in Season 5 fully proves that point.
On the flipside, Lesley-Ann Brandt admitted that she wanted to portray Maze with a British accent (likely to match with Ellis), but was told to speak with an American accent instead. By the way, neither is her natural accent, which is South African (she is also fluent in New Zealand English by virtue of growing up there since she was a teen).
All of Season 5 except the final episode was made with the assumption that it would be the end of the show. When they got a surprise pickup for one more season, what was meant to be just the finale's epilogue was expanded into an entire season, with the final act simply chopped off (noticeably leaving it the only episode in the season that's not a full hour long).
Among the bits deleted from the season 5 finale was Ella showing Charlie with small wings and revealing that she'd always secretly suspected just what was really going on.
Word of God: According to the showrunners, after Season 6 Lucifer will have Michael as a patient during the latter's sentence, make peace with his brother, and help him on his path to redemption.
The #SaveLucifer Campaign After the show's cancellation by Fox, fans repeatedly pushed the hashtag to the Top Ten trending on Twitter and shared why they wanted the show to return. The producers of the show, along with the cast, praised the fans for the campaign and worked to help however they could, with interviews and updates. After almost a month of uncertainty, #LuciferSaved. Netflix grabbed the show a day before the actors' contracts were set to expire. The cast were ecstatic to hear the news, with Rachael Harris appearing sans makeup to quickly spread the news, Aimee Garcia filming a shocked reaction in her car, and Scarlett Estevez's mother surprising her in a video and her face lighting up in excitement.
