John Billingsley, most recently seen on The Nine and perhaps best known as Star Trek: Enterprise's Dr. Phlox, will guest on the May 1 episode of CBS' NCIS. He'll play a visually impaired photographer with an acute sense of smell whom the NCIS team enlists to help solve the case of a deceased petty officer who shows up in one of the shutterbug's recent pictures.

In other casting news involving actors from shows with numbers in the title, a 90210er and a Party of Fiver are Medium-bound. Check out the Ausiello Report for deets.