Trivia

When chiding Sebastian, Bailey calls him different detective names throughout the movie but never repeats the same name twice. They include Miss Marple, Columbo (1971), Jessica Fletcher from Murder, She Wrote (1984), Poirot as in Hercule, Rockford from The Rockford Files (1974), Inspector Morse (1987), Crockett from Miami Vice (1984), Sherlock as in Holmes, and Benoit from Knives Out (2019).

Sebastian Moore's little red convertible is a 1969 (British) Hillman Minx.

Lacey Chabert and Will Kemp have been in four movies together, the first being the thriller Non-Stop (2013), Love, Romance, & Chocolate (2019), The Christmas Waltz (2020) and The Dancing Detective: A Deadly Tango (2023).

Dancing together as student and teacher respectively is also key to Lacey Chabert and Will Kemp's characters in another Hallmark movie, The Christmas Waltz (2020). This movie is their third Hallmark one together, the first, a non-dance-centric one, being Love, Romance, & Chocolate (2019).

Choreographer Jean-Marc Genereux is a former ballroom dance champion who competed professionally with wife France Mousseau. He is best known as a judge and choreographer on the Canadian and American versions of "So You Think You Can Dance," as well as the French version of "Dancing With the Stars". Aside from choreographing "The Dancing Detective," Jean-Marc also choreographed stars Lacey Chabert and Will Kemp's routines in another Hallmark movie , "The Christmas Waltz".