Consulting Producer Heidi Perlman is the sister of Rhea Perlman, who played Carla Tortelli on "Cheers," where the Frasier Crane character was originally introduced.
The episode title "Don Juan in Hell" refers to a play within a play that occurred in the play "Man and Superman" by George Bernard Shaw written in 1903.
Daphne exceptionally begins addressing Martin Crane as "Marty" instead of "Mr. Crane." She does this not to be familiar but in an irritated response to Claire's addressing him as Marty.
Daphne's bobbed hair in this season marks the style furthest from what she wore at the beginning of the series.