NCIS fans are voicing their frustration loud and clear, and the target is Mark Harmon’s replacement. Ever since Harmon’s departure as Leroy Jethro Gibbs, the show has seen major shifts in tone and leadership—and not everyone is happy about it. While CBS promised a “seamless transition,” loyal viewers feel betrayed, claiming the network “flat-out lied” about keeping the show’s core spirit alive.

The main focus of fan outrage is the new lead character, who many feel lacks the gravitas, charm, and emotional depth that Harmon brought for nearly two decades. “This isn’t the NCIS we’ve loved for years,” one viewer commented online. Another added, “It feels like a completely different show now—and not in a good way.” Critics say the new leadership feels forced, and the chemistry that once defined the team dynamic has all but vanished.

What makes matters worse for fans is that CBS repeatedly reassured them that Gibbs would remain “part of the DNA” of the show. However, with little to no mention of his character and the shift in storytelling style, viewers believe the network has strayed far from that promise. Some are even calling for a reversal—either a surprise return for Harmon or a creative overhaul to get back on track.

As ratings begin to show signs of strain, CBS may have to listen. Fans of NCIS are loyal, but their patience has limits. If the backlash continues, the network might be forced to rethink its strategy—or risk losing the audience that made the series a global hit.