Creator Shonda Rhimes said that the ABC medical drama tried to bring the 'Madam Secretary' regular back for Jessica Capshaw's last episode.

Sara Ramirez, now a series regular on CBS' Madam Secretary, wants to return to ABC's Grey's Anatomy.

The actress, who departed the medical drama in 2016 following a 10-season run as Callie Torres, says CBS is open to her returning to the ABC show.

"For the record @CBS has been nothing but gracious and generous to me. They are open to Callie coming back! The ball is in @ABCNetwork's court," Ramirez tweeted Wednesday.

While it's unclear what prompted Ramirez's tweet, Grey's Anatomy returns Thursday for its 15th season — and first without Jessica Capshaw, who portrayed Arizona Robbins, Ramirez's onscreen love interest.

On the season 14 finale — which served as the final episode for Capshaw and Sarah Drew's April — Arizona got her happily ever after. Following her decision to move from Seattle to New York so her daughter, Sofia, could be in the same city with her other mother, Callie, Arizona revealed that Callie was now single as well, as the former married couple seemed poised to start anew.

Grey's Anatomy creator Shonda Rhimes said in an Instagram Q&A in August that the series tried to get Ramirez back for the season 14 finale. "We tried. CBS has a hold of her. Because she is on another show, and we can't get her. But we love her. Always. This is her home. Come home Callie," Rhimes said at the time.

Callie was last seen in season 10 of Grey's when she moved to New York to be with then-girlfriend Penny (Samantha Sloyan). Ramirez joined CBS' Madam Secretary as a series regular in October 2017. Madam Secretary and Grey's Anatomy are produced by different studios (CBS TV Studios and ABC Studios, respectively). The CBS drama films in New York, while Grey's shoots in Hollywood. Typically, series regulars are permitted to film three episodes of another show (be it the same or a mixture), although those rules have become more relaxed as the number of scripted originals has risen.

At the time of her departure, Ramirez said she was taking some time off and noted that she looked forward to "always being part of the Shondaland family." Rhimes said in a statement at the time that Ramirez will "always have a home at Shondaland." Rhimes said the same of Capshaw (and Drew) at the time of their departure in March.

Ramirez and Capshaw's Callie and Arizona were among the most beloved couples in more than a decade of Grey's Anatomy. Their onscreen wedding was, at the time, one of the first same-sex unions in primetime. Their storyline helped the show earn praise for its inclusive representation from a number of groups, including GLAAD.