- Sean Murray (Timothy McGee)
- Wilmer Valderrama (Nick Torres)
- Katrina Law (Jessica Knight)
- Brian Dietzen (Jimmy Palmer)
- Rocky Carroll (Leon Vance)
- Diona Reasonover (Kasie Hines)
- Gary Cole (Alden Parker)
Episode: Too Many Cooks (I)
Air Date: 2023-01-09
Runtime: 43 min
NCIS agents from Washington, D.C., Los Angeles and Hawai’i, all in D.C. to attend the retirement party of a beloved Federal Law Enforcement Training Center (FLETC) professor, find themselves jointly investigating his shocking suicide. The crossover continues on NCIS: Hawai'i S02E10 Deep Fake (II) and NCIS: Los Angeles S14E10 A Long Time Coming (III).