The Oscar nominee was a key player in the beloved U.S. comedy-drama, playing Sookie St. James, the best friend of Lauren Graham's lead character, for all seven seasons of the show.

When news of the Netflix revival was confirmed in January (16), MCCarthy was the one star missing from the list of returning cast members. At the time, Gilmore Girls creator Amy Sherman-Palladino told that MCCarthy was unable to come back, citing the actress' "busy schedule" as the reason for her absence.

Shortly after, the Bridesmaids star replied on Twitter, "Sadly no one asked me or Sookie to come back to (fictional town) Stars Hollow. Wish them all the best!!", prompting even more confusion from fans.

But in an Entertainment Weekly article released on Thursday (07Apr16), Sherman-Palladino re-extended the invite for MCCarthy to return, saying, "We’ve just put it out into the universe; we’re here (filming) until 10 May (16). I know what the scene is. I’ll pre-light it for her. She can drive up, run in, shoot it, and run out. I can get her in and out in two hours."

And later that day, MCCarthy gave fans good news during an appearance on comedienne Ellen DeGeneres' U.S. chat show, revealing she had finalised a deal to reprise her role for the revival.

"There has been something that I have been asked about so, so many times and it hasn’t worked out," MCCarthy began. "They’re making four new movies of the Gilmore Girls which is a show which was near and dear to my heart for years and we could not get those schedules to work.

"And there was a whole thing. And then I was gonna be out of the country and blah, blah, blah. And literally about an hour and half ago we figured out that I’m gonna go back and do it and I am so excited. And they are gonna be amazing."

Melissa's interview with Ellen is set to air on Friday (08Apr16), the same day the star's new movie, The Boss hits cinemas in America.

With her official return, MCCarthy joins Graham, Alexis Bledel, Kelly Bishop and Scott Patterson for the new instalments, along with Jared Padalecki, Milo Ventimiglia, Matt Czuchry, Sean Gunn, Liza Weil, Sally Struthers and Yanic Truesdale, among others, who are all reprising their roles nearly 10 years after the series ended.

Production began in February (16), but Netflix bosses have yet to announce when the four-part, 90 minute mini-movies will be released.