How Did Mark Harmon Return to ‘NCIS’ for ‘Origins’ Crossover After His Exit as Gibbs? - Us Weekly

Mark Harmon Will "Destroy Some [NCIS] Fans' Hearts" For One Surprising Reason - Screen Rant

NCIS: Origins Creators Reveal Key Mark Harmon Detail That Will 'Destroy' Fans' Hearts - Comic Book Resources

Returning NCIS Star Promises Fans Will Be ‘Surprised’ By NCIS: ORIGINS Crossover - Movieguide

NCIS: Origins Finally Settles the Debate Over Mark Harmon’s Gibbs Replacement With 1 Perfect Scene - Comic Book Resources

'NCIS: Origins' Season 2 Episode 5 Review: Mark Harmon's Return Can't Fully Save This Prequel Series' Decades-Spanning Case - Collider

Mark Harmon teases future on NCIS: Origins after guest appearance - HELLO! Magazine

NCIS: Origins Showrunners Address If Mark Harmon's Gibbs Will Ever Reunite With Lala - Screen Rant

What happened with Mark Harmon’s character on NCIS: Origins? Everything to know about his previous exit amid his surprise return - primetimer.com

Mark Harmon: From Football Star to Television Icon - Info Petite Nation

NCIS: Origins' Mark Harmon Episode Quietly Breaks 3 Major Gibbs Rules (at Least) - Comic Book Resources

Mark Harmon Returns to NCIS Franchise with Callback to His 'Early Days' in Rare Cameo - People.com

Mark Harmon to make rare 'NCIS: Origins' appearance and Gibbs is 'no longer alone' - AOL.com

NCIS: Origins Bosses Explain Why We Didn't See Mark Harmon's Gibbs Reunite With Lala — Plus, Get Scoop On [Spoiler]'s Surprise Cameo - IMDb

NCIS: Origins Bosses Explain Why We Didn't See Mark Harmon's Gibbs Reunite With Lala — Plus, Get Scoop On [Spoiler]'s Surprise Cameo - TVLine