New York Undercover to Supernatural
4 connections
New York Undercover
Law & Order
Elizabeth Olivet from Law and Order appeare on New York Undercover
Homicide: Life On The Street
Law and Order and Homicide crossed over on four episodes
The X-Files
Homicide's John Munch questioned The X-Files' The Lone Gunmen.
Supernatural
Characters on Supernatural rented cars from the fictional Lariat Rent-A-Car which Mulder and Scully rented from on The X-Files