Daisy Ridley may have just thrown cold water on one of the latest "Star Wars" fan theories.

The debut last week of the teaser trailer for "Rogue One: A Star Wars Story" ignited speculation that Felicity Jones' rebellious Jyn Erso just might be one the parents Rey had waited so long for on Jakku. Why? Well, they share a hair color and, um ... That seems to be about it.

RELATED: "Rogue One's" Jyn Erso is No Rey -- and That's Great

“I’m not being funny you guys, but just because she’s white and got brown hair …  you know what I mean?” the "Force Awakens" star told MTV at the MTV Movie Awards. "Like, it doesn't mean she's my mom. Also, I don't know if that will work out, time-wise, because I'm trying to think how much time has gone ... I don't know. Maybe she is!"

Of course, Ridley already knows who Rey's parents are, so we can pretty much close the door on that Jyn Erso theory.