New York Undercover to The Lone Gunmen
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.
The Lone Gunmen
The Lone Gunmen was a spinoff of The X-Files