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Appearances
NCIS: Origins
Guest cast, played by Mark Harmon
- Episode 1x01: Enter Sandman (Oct 14, 2024)
- Episode 1x02: Enter Sandman, Part 2 (Oct 14, 2024)
- Episode 1x03: Bend, Don't Break (Oct 21, 2024)
- Episode 1x04: All's Not Lost (Oct 28, 2024)
- Episode 1x05: Last Rites (Nov 4, 2024)
- Episode 1x06: Incognito (Nov 11, 2024)
- Episode 1x07: One Flew Over (Nov 25, 2024)
- Episode 1x08: Sick As Our Secrets (Dec 2, 2024)
- Episode 1x09: Vivo o Muerto (Dec 9, 2024)
- Episode 1x10: Blue Bayou (Dec 16, 2024)
- Episode 1x11: Flight of Icarus (Jan 27, 2025)
- Episode 1x12: Touchstones (Feb 3, 2025)
- Episode 1x13: Monsoon (Feb 10, 2025)
- Episode 1x14: To Have and To Hold (Mar 24, 2025)
- Episode 1x15: From the Ashes (Mar 31, 2025)
- Episode 1x16: Bugs (Apr 14, 2025)
- Episode 1x17: Darlin', Don't Refrain (Apr 21, 2025)
- Episode 1x18: Cecilia (Apr 28, 2025)