Katey Sagal is breaking her silence after ABC decided not to renew “Rebel” for a second season. 

Sagal stars as Annie “Rebel” Bello in the series, which was inspired by the life of Erin Brockovich. 

RELATED: Katey Sagal Is A Woman On A Mission In New Trailer For ‘Rebel’

The actress took to Instagram to speak out after the news was officially announced.

“The abrupt announcement that there would be no season 2 based on the response from our airings came a shock and a heartbreak,” Sagal wrote. “Things take time to catch on. Rebel tells the story of a woman who speaks up for what is right, the show has heart and purpose, funny and tears, and we, the cast, are all scratching our heads at the reversal of support from ABC.”

Andy Garcia, John Corbett, James Lesure, Lex Scott Davis, Tamala Jones, Ariela Barer, Kevin Zegers and Sam Palladio co-starred in the drama series.

RELATED: ‘Grey’s Anatomy’ Showrunner Krista Vernoff Says Not Knowing If Show Will Be Renewed Is ‘Not Ideal’ 

Sagal continued, “As Rebel would say, fight for what you want, make people listen, and in this case, if our show can find another, more suitable place to land, we will do the happy dance. If not, we gave it our all and made our voices heard, which is the message behind Rebel! Always Speak Up!!”

Sagal encouraged fans to sign a #SaveRebel petition, which has already gained thousands of signatures.

Brockovich also took to social media to share her views on the decision, which came just five episodes into the first season. 

RELATED: ‘Grey’s Anatomy’ Showrunner Krista Vernoff Reveals She Quit ‘Charmed’ Because Of Network’s Focus On Getting The Girls ‘Naked’

“There’s an irony to a show by & for strong women who don’t quit, being cancelled,” she wrote on Twitter.

On Tuesday, new ABC chief Craig Erwich addressed the cancellation of “Rebel” and other shows that won’t be on the network’s schedule next season, including “American Housewife”, “Mixed-ish” and “For Life”.

“They are all unique shows who on their own specific timeline where they are creatively and with the audience,” Erwich told Deadline. “I can say that just because we are not ordering new seasons does not take anything away from the impact that these shows had creatively or how many fans they have on ABC. These are difficult business decisions but we are really proud of the runs that all of these shows had.”

Asked “Rebel” wasn’t given more time to find an audience, Erwich replied, “[Showrunner] Krista Vernoff is not just an amazing talent, she is a valued and beloved part of the Disney family. We gave ‘Rebel’ a really considerable launch and a launch effort. It was a huge priority for us for midseason. One of the advantages of a stable schedule is, you can focus and platform new shows, which ‘Rebel’ was a beneficiary of. Unfortunately, it did not garner the audience that we needed it to do, so we had make that decision.”