The actor previously starred in a number of high-profile films including 28 Weeks Later and The World Is Not Enough.
However, in a video on the Total Film website, Carlyle said: "I started off doing TV so it didn't ever seem to me to be like a journey back in any way. I'd continued to do bits of TV through the years - some stuff that I'd really enjoyed, particularly Hitler: The Rise of Evil with CBS and also... Human Trafficking, so those two things were really the steps on the way to [Stargate Universe]."
He also revealed that he enjoys the long-running nature of a television show.
"[Nothing] is ever quite over in space," he said. "Things will come back, so something that happens in episode 2 or 3 can come back [in later episodes]. I like that - it gives you a real broad arc to the whole thing. It's a wonderful thing as an actor to be able to play something over nine months and really go to every possible parameter of a character."
Carlyle explained that he appreciates the unique personality of his character Dr. Nicholas Rush.
"He's pragmatic. I like that. You don't get many characters like that in films or TV that are so blatant [and] in your face... I've enjoyed playing Rush a great deal," he said.
The new season of Stargate Universe will premiere on September 28 on Syfy.