Hawaii Five-0 stars Daniel Dae Kim and Grace Park are leaving the CBS series after seven seasons, the result of a breakdown in salary negotiations, Variety reports.

Both actors have starred in the 2010 reboot of the 1968 show since its premiere, but neither was able to reach an acceptable deal with the network to return for season eight. The final offer made to the actors from CBS was reportedly 10 to 15 percent lower than their co-stars Alex O’Loughlin and Scott Caan earn, according to Variety.

O’Loughlin and Caan also have back-end deals, which give them a cut of the show’s profits. It’s not clear whether that was on the table for Park and Kim, or what higher — or lower — offers CBS had presented to the actors prior to their exit.

The absence of Kim and Park’s characters, cousins Chin Ho Kelly and Kono Kalakaua, will be addressed in the season eight premiere, though it’s currently not clear how. Season seven ended with up-in-the-air storylines for both characters, with Kelly ready to head a task force in San Francisco while Kalakaua left to investigate a sex trafficking ring involving children.

Of Kim’s departure, Hawaii Five-0 executive producer Peter Lenkov said in a statement, “There was no other actor who I’d want to play Chin Ho Kelly … Needless to say, Daniel has been an instrumental part of the success of ‘Hawaii Five-0’ over the past seven seasons.” Lenkov added, “Grace’s presence gave ‘Hawaii Five-0’ a beauty and serenity to each episode. She was the consummate collaborator, helping build her character from day one.”

While the casting shake-up may be saddening for many Hawaii Five-0 fans considering Kim and Park’s prominent roles on the show, their decision to leave may reflect a larger issue for actors of color. This group is historically paid less than their white male co-stars. Kim has been particularly outspoken about this issue, telling the New York Times last year, “The harsh reality of being an actor is that it’s hard to make a living, and that puts actors of color in a very difficult position.”

Neither Kim nor Park have publicly addressed the pay differences or salary negotiations for Hawaii Five-0 season eight.

In general, a University of Southern California study found that in 2015, only 3 to 4 percent of broadcast and cable scripted roles went to people of Asian descent and “at least half or more of all cinematic, television, or streaming stories fail to portray one speaking or named Asian or Asian American on screen.” Those sorts of details — whether a role is speaking or non-speaking, regular or recurring — have an impact on how much an actor earns. Kim and Park held regular speaking roles, and for that reason, their presence on the series — and now fight for pay on par with their white, male co-stars — didn’t go unnoticed.

There were early signs that leaving the show was a possible outcome for both actors. In May, Kim had said that his recent interest in the production side of TV, where he can “create worlds from the ground up,” led to his role as a co-executive producer on ABC’s new series, The Good Doctor. Then on June 8, TV Line reported that Hawaii Five-0 is seeking a new regular female lead. The character Tani is described as both a current lifeguard and stubborn but courageous former police academy candidate who was kicked out for cheating on a final exam and knocking out a training officer.

Both pieces of news could mean Park and Kim’s negotiations had been taking place for a while. And though the actors’ departures perhaps shouldn’t be viewed as that much of a surprise, they still add to a somewhat disheartening Hollywood trend.