John Prosky

Izzie seems to be getting over Alex when she shares an undeniable chemistry with Denny Duquette, a patient who's awaiting a heart transplant, and George treats Bex, a young teen hermaphrodite.

After a doctor is found dead at a golf course, the CBI team searches for a killer amongst a hospital’s staff and patients. Meanwhile, when LaRoche is placed in charge of the CBI, his first act of business is to name Cho the new team leader.

Voyager recovers a long-lost space probe which has caused terrible radiation damage on a distant planet.

A body is found covered in scratches, leading the BAU to believe that the person responsible has a chronic skin disorder.

When classified information is leaked, the Secretary of the Navy (Matt Craven) investigates alongside Gibbs and Dr. Samantha Ryan (Jamie Lee Curtis).

Starfleet Security warns Sisko that a Maquis smuggler is aboard Deep Space Nine -- and it may be his girlfriend, Kasidy Yates.