|First Appearance:||CSI: Crime Scene Investigation|
The CSI Universe is a world much like our own, with the exception that there are many more murderers in theirs.
- CSI: Crime Scene Investigation
- CSI: New York
- CSI: Miami
- CSI: Cyber
- Cold Case
- Without a Trace
- The main CSI shows have many common characters that work together at times.
- Scotty Valens (Cold Case) has visited the CSI New York crime lab in the CSI: New York episode "Cold Reveal".
- The casts of CSI and Cold Case worked together in the CSI episode "Who and What" and the Without a Trace episode "Where and Why".