The recurring mystery extra (middle-aged blonde lady) who is featured in many The Magician episodes, can be here seen at the very beginning: she is walking in the museum by herself, looking at a display, when closing time is called, upon which she looks at her watch and promptly exits.
When Larry Ford (Don Gordon) presses the elevator button inside the elevator at about 28 minutes in, the sound heard is the same as that of the photon torpedo launcher of the USS Enterprise NCC1701 on Star Trek TOS.
There are five Star Trek alumni in this episode: Mariana Hill--TOS: Dagger of the Mind Claudette Nevins--Star Trek: Insurrection Joseph Ruskin--TOS: The Gamesters of Triskelion plus DS9, VOY, and ENT David Frankham--TOS: Is There in Truth, No Beauty? Joseph Mell--TOS: The Cage