If this season has proven anything its that anyone can die on Stargate: Universe.

Already a handful of fan-favorite characters have bit the dust, and Patrick Gilmore (who plays Dr. Volker on the series) recently confirmed to Airlock Alpha that more deaths are on the way. But could Dr. Rush (Robert Carlyle) be among them?

"I think I can continue for a bit, but there will obviously come a point where I've played it and I've done it," Carlyle told SciFi Now. "I'll know when that time is there."

What will that mean for Stargate: Universe, a series where death is becoming a regular character? Well, there are numerous possibilities that could keep Rush around for the rest of the crew when they need him (like Col. Telford for example), or they could send him off with a story with a greater tone of finality to it.

However, it is important to remember that SGU already has a five-year plan in motion that will see the series to a proper conclusion, the likes of which Stargate SG-1 received through television movies and Stargate: Atlantis may never receive on its own. How long Rush is a part of that plan is not publicly known, but Carlyle admits he enjoys playing the character.

"Rush is, without a doubt, one of the most interesting characters I've ever played, he said. He's nothing if not pragmatic. It doesn't matter about individual sacrifice to him, if the mission or the greater good is satisfied."

How similar are Rush and Carlyle? Gilmore recently explained that the two couldn't be more different, and according to Carlyle, that is something that helps make the character so entertaining to play.

"In terms of the acting, it's very important to walk a particular line with Rush," he said. "He has to have good reasons for what he does, and I think ... the strength in the character that [co-creators] Brad Wright and Robert Cooper have set in place, is that yes, maybe [his actions are] a bit distasteful, but he's right."

"Stargate: Universe" airs Tuesdays at 9 p.m. ET on Syfy.