Beverly Hills 90210 to Castle
4 connections
Beverly Hills 90210
The X-Files
Brenda Walsh picks up a Morley smoking habit while in Paris on Beverly Hills 90210
Homicide: Life On The Street
Homicide's John Munch questioned The X-Files' The Lone Gunmen.
Law & Order
Law and Order and Homicide crossed over on four episodes
Castle
Hudson University from L&O also appears as the home of various victims and crimes in Castle,