Peter Capaldi, the British actor who is currently playing as the twelfth incarnation of the Doctor in the longest-running Sci-Fi BBC series "Doctor Who," has teased that his next regeneration is going to be complicated.

Capaldi, while speaking with The New York Times, has revealed that he knows what's going to happen to his mysterious character in "Doctor Who" Season 10. And noted that it is going to be more complicated than what happened in the past.

"There's this notion now that it's the same process he's gone through every time, and that's not true," the 58-year-old actor said. "It's only the last couple of regenerations that have been, as it were, fairly straightforward ones."

However, despite knowing what's going to happen to the Doctor in "Doctor Who" Season 10, Capaldi cleared out on the interview that he still doesn't know how it will come to that. He went on to say that he can't reveal any other specific details about the matter.

As what some fans may recall, the ninth doctor's (Christopher Eccleston) regeneration was fairly straightforward in nature after he absorbed the time vortex from Rose (Billie Piper) who was the Bad Wolf then. The Tenth Doctor (David Tennant) regenerated after being exposed to massive amount of deadly radiation, Screenrant reported. The recent one, Eleventh Doctor (Matt Smith), went to the process due to old age.

According to the source, Capaldi's comment about the future of the Doctor in "Doctor Who" Season 10 seems to suggest he will do the regeneration process voluntarily. Another factor that fans could also look into is the fact that all of his regeneration powers are tapped out after his most recent one - it only became possible thanks to the power of the Time-Lords.

"Doctor Who" Season 10, Capaldi's final season as the Doctor, will return to BBC America on April 15.

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