'Arrow' Season 3 Cast Stephen Amell Warns Viewers: 'It's Going To Get Worse Before It Gets Better'

Stephen Amell dished spoilers for "Arrow" season 3 as he promised fans that things would get worse for Oliver Queen and the rest of the team "before it gets better."

The cast and showrunners joined the panel of the 2015 Paleyfest on Saturday, according to TVLine, where they offered preview for upcoming episodes.

Stephen Amell also weighed in on Ra's al Ghul's invitation for Oliver Queen to replace him as the leader of the League of Assassins. In previous teasers, the billionaire was seriously considering taking up the offer, but there's a reason why.

 "If you know Ra's and his tactics... you realize that it's an 'offer' in name only. It's a demand. And if Oliver says no, there will be incredibly dire consequences," he said.

"One of the things that Ra's pitches to him is that the League does as Ra's al Ghul commands," he added. "So if he commands that they stop killing, they stop killing. You are the architect of the League of Assassins when you're Ra's al Ghul and that's an army for him to command... in theory."

John Barrowman, who plays Malcolm in the show, also teased "Arrow" season 3 spoilers as he told Superhero Hype that there's going to be huge changes for everybody in the show.

"But what's amazing is that the things that have happened with Malcolm gives me as the character and also the writers a free reign to do anything that they want because he's divulged who he is emotionally," he said.

"But he's exposing himself in a self way and an emotional way to all of the other characters. So, is he asking for their trust? We don't know. I mean... I really want to tell you what's going to happen, but it's so f***ing exciting it's not even funny."

"Arrow" season 3 will return on March 18 with the episode titled "The Offer." Watch out for more spoilers which will be published when they become available.