At the end of the 10th season of "NCIS," Cote de Pablo, who portrayed the sassy and strong Ziva David, chose to leave after deciding that her character had strayed far from the independent woman she had been at the start of the show, according to Newsweek.
Though de Pablo made a surprise return in the 16th and 17th seasons of "NCIS," loyal Ziva fans were still angry that a reunion never took place between Ziva and Tony DiNozzo, portrayed by Michael Weatherly (he left the show after the 13th season), who had teased fans for years with their on-again, off-again love story of sorts. Their relationship was so beloved by fans that it earned them the collective nickname of Tiva. "Well done @CBS," a Twitter user said. "Lost hundreds of viewers. No Tiva. Never again... you can't fix it I guess."
In 2018, Pauley Perrette, who had portrayed the loveable goth forensic scientist Abby Sciuto on "NCIS" for 15 seasons, left the show due to conflicts with Mark Harmon, according to Showbiz CheatSheet. Though fans noted that they would miss Abby, they admitted that they would miss the "old Abby" more. "I miss well-written Abby, but she's been gone for a long time," a Reddit user said. "Her not being on the show means the writers can't destroy her character any more than they already have. That's a good thing."