Many in the guest cast are actors who have had prominent roles in musical theatre, like John Rubinstein (Pippin), Adam Pascal (Rent, with series regular Tracie Thoms) and Laura Bell Bundy (Hairspray).
Adam Pascal's character plays Cliff in Cabaret. In real life Adam Pascal has also performed in Cabaret but as Emcee in the revival.
In the eighth grade, Det. Vera played Danny Zuko in the school's production of the musical Grease.
Lilly doesn't like musicals.