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Mark Harmon Makes Brief On-Screen Return in NCIS: Origins–NCIS Crossover

The appearance links timelines using de-aging to connect Gibbs in Alaska to Austin Stowell’s younger portrayal.

Overview

  • Harmon surfaced in the opening minutes of NCIS: Origins on Nov. 11, marking a rare on-camera turn as Gibbs since his 2021 exit.
  • The scene shows Gibbs in Alaska speaking to a dog, echoing producers’ tease that he is no longer alone.
  • Visual effects de-age Harmon on screen to transition into Austin Stowell’s portrayal of a younger Gibbs.
  • The two-part event ties a 1990s investigation to a present-day reopening after Tommy “Peaches” Mulligan’s prison escape, with legacy figures such as Vera Strickland returning.
  • Harmon approved the creative idea, continues as an executive producer and Origins narrator, and has not committed to further appearances.