Shannen Doherty has urged 'Charmed' fans to throw their support behind a reunion series

Speaking on her 'Let's Be Clear with Shannen Doherty' podcast, she explained: "The way that it works is that as actors, unless we wrote the show, created it and produced it, we have no rights to it.

"I believe CBS owns the show. The only person or company that can make a reunion happen is CBS."

Shannen subsequently urged fans to make their feelings known to CBS.

The actress said: "So if you guys really want one you have to bombard their Instagram, [CBS'] Facebook, write mail. I don't even know how to do any of that but that's the only way.

"You know, do some petitions and send them in. That's pretty much the only way that it would happen."

Shannen was actually fired from 'Charmed' around the third season of the show.

The actress has now insisted that she would've rejected any invitation to return for the finale, admitting that returning to the set would've "crushed" her.

Shannen - who famously clashed with Alyssa Milano, her 'Charmed' co-star, at the time - shared: "I regret it one sense - I regret it for the fans.

"But I don't regret it for me, because I was so incredibly wrecked from getting fired that, I think, even years - years - years later, had I walked on that set, it just would've stirred everything back up for me. And it would've crushed me all over again."