LL Cool J
In the April 21, 2026, airing of NCIS Season 23 Episode 17 'Reboot'—as previewed in advance hype—LL Cool J reprised his role as Sam Hanna. The episode featured a botched computer system upgrade, the murder of a technician, a team member's death reference, and franchise history nods. Hanna surprised the team, assisted in the investigation, shared personal updates, and provided encouragement.
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LL Cool J is reprising his role as Sam Hanna in the upcoming NCIS season 23 episode titled 'Reboot,' set to air on April 21 at 8 p.m. on CBS. A promo for the episode, which aired after a recent Tuesday installment, shows Hanna surprising the team amid a tense situation at NCIS headquarters.