When Fawkes meets Hobbes in Mexico, a cut business card with the name "I. M. Foreman" is used to prove their identities. "I. M. Foreman" is the name of the owner of 76 Totter's Lane, the junk yard where the TARDIS is first seen in the pilot of Doctor Who (1963).
Writer/executive producer Matt Greenberg appears in an uncredited cameo as the doctor who examines Darien.
Darien and his brother mention Mira Sorvino when his brother is trying to get Darien to turn invisible. Vincent Ventresca, who plays Darien, co-starred in the movie Romy and Michele's High School Reunion (1997) with Sorvino.
When Arnaud is impersonating a CIA agent, he gives his name as Agent Griffin, an homage to the lead character in H.G. Wells' novel The Invisible Man.
Several of the cast members in this episode have appeared in The Mentalist including the two leads; Vincent Ventresca and Paul Ben-Victor. The others are Joel Bissonnette, Joel Polito and David Burke.