'Fringe' star teases finale twists (may contain spoilers)

Fringe star John Noble has revealed new details about the show's third season finale. The actor told SkyTV that tonight's episode will end with an "astonishing cliffhanger to finish season three".

"We've been building for three years towards this moment of armageddon, and finally the machine comes to life and we have to deal with that," he explained. "Characters get killed, we're going to be go flashing forward into the future, and all of the characters from each side we'll meet up."

Fringe showrunner Jeff Pinkner previously claimed that "somebody who [fans of the show] love deeply" will die in the finale, but Noble denied that his character Walter Bishop will be killed off. 'I'm not going to get killed," he insisted. "All of our principal characters will be back next year, just maybe a little bit different." However, he added that the final cliffhanger will "upset" the Fox drama's loyal fans.

"[The fans will] be really upset," he said. "They'll be wanting to know how we did this, why we did this, and how we resolve it."

The third season of Fringe concludes tonight at 9/8c on Fox.

Watch the Fringe cast discuss the season finale below:

Fringe - the true identity of Sam Weiss?

The executive producers of Fringe have dropped hints about the true identity of Sam Weiss.

On the sci-fi drama, Weiss (Kevin Corrigan) recently revealed that the connection between Peter (Joshua Jackson) and the machine could lead to the destruction of the universe.

In an official Fox interview, showrunner Jeff Pinker said: "Sam is either telling the truth with ulterior motives, or he's telling a lie, or he's just telling the truth."

He added that the nature of Weiss's relationship with Nina Sharp (Blair Brown) is "something we should reveal".

"There a secret [involved] in that," explained co-producer Joel Wyman. "it's very interesting. It's not what you think."

The pair claimed that they could "neither confirm nor deny" whether Weiss is one of the First People, but ruled out any connection between the ancient race and the mysterious Observers.

"It's possible that the First People have the same capacity as Observers to exist in different times [but] The Observers are there own thing," said Wyman. "That's for sure. I can tell you that."

Wyman previously claimed that the true nature of Weiss will be "something that you don't see coming".

Fringe will return to Fox on April 15.

Fox has renewed Fringe for a fourth season.

Great news for Fringe fans: Fox has renewed Fringe for a fourth season with a full season order of 22 episodes. You will not have to gut out the white knuckle ride until May!

The announcement comes on the heels of season low ratings last Friday when Fringe was up against the NCAA basketball tournament.