For the DC Fandome 2020 event, co-showrunner Ildy Modrovich said Tom Ellis's suit pants were specially tailored with wefting - extra stretch points so he could dance in them without splitting the fabric. They tore anyway.
Lauren German improvised Chloe's standing forward bend during "Another One Bites the Dust". Lucifer's utter surprise at this move is Tom Ellis's genuine reaction.
Lucifer walks into the squad room whistling the show's theme tune.
Dennis Haysbert, as God, plays the father of D.B. Woodside's character, Amenadiel. The actors previously played brothers David and Wayne Palmer in 24 (2001), both of whom served as US Presidents.
God whilst dancing to music in Lux says "ixnay in the usicmay" which is Pig Latin for "nix on the music", i.e. no more music. He then amends it: "just as soon as this is over."