Fans were quick to respond as one wrote on Michelle's snap: "Don't leave! We need girl power in fast 9!
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"Letty represents that! Also that she's part of the family! Without you and Letty there's no Fast and Furious! Please Michelle don't go!"
Michelle has played Letty - the sweetheart to Vin Diesel's character Dominic - in five out of the eight films.
The latest film The Fate Of The Furious did bring another female character to center stage with Charlize Theron as Cipher. However, the character was a villain hell bent on destroying humanity.
And Elsa Pataky's Elena Nives character - involved in four of the movies - was shot from behind in the head.
Meanwhile, Letty and Ramsay, played by Nathalie Emmanuel, were given significantly smaller roles to make room for Dwayne Johnson and Jason Statham.
To add fuel to Michelle's fire, Jordana Brewster's character, Mia, was in four films and cut after the real life death of Paul Walker.
The next two installments have already been announced as Fast and Furious 9 will open April 19,2019, with Fast and Furious 10 coming April 2, 2021.
For now, Michelle is scheduled to appear in those films.