Castle to Martial Law
5 connections
Castle
Law & Order
Hudson University from L&O also appears as the home of various victims and crimes in Castle,
Homicide: Life On The Street
Law and Order and Homicide crossed over on four episodes
Chicago Hope
Chicago Hope's Jeffrey Geiger accepted an organ of a victim on Homicide
Early Edition
Early Edition's Gary and Marissa went to Chicago Hope's hospital for medical treatment.
Martial Law
Early Edition's Gary is asked to locate someone for Martial Law's Sammo Law