Peter Capaldi in 'Doctor Who'Peter Capaldi is preparing to make his San Diego Comic-Con debut as the star of “Doctor Who,” but before that he’s dropping some small hints about what to expect from the Season 9 premiere of the series.

Speaking to Entertainment Weekly, Capaldi says the two-part episode “places the Doctor in a conflict that is central to his being.” That includes the Time Lord making “a mistake that has cataclysmic repercussions.”

That mistake could come from a new side of the Doctor’s personality, which will emerge in Season 9. “He’s throwing himself into life with a new-found hunger for adventure,” Capaldi says of his character. “He’s in pursuit of joy and grabbing every thrill that he can along the way.”

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It won’t just be the Doctor looking for the thrill of adventure, though. Capaldi says Clara (Jenna Coleman) will realize just how lucky she and the Time Lord are to be able to travel all through space and time. “Jenna continues to deliver a beautifully nuanced, complex, and funny performance that marks her out as one of the best companions ever,” he adds.

As for Clara’s future as the Doctor’s companion, it’s unknown how long she’ll stay with the show. It was previously revealed by showrunner Steven Moffat that Coleman decided to leave twice in Season 8, changing her mind both times.

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Whatever the plan for Coleman’s character is in the future, Capaldi isn’t ready to let her go just yet. When asked if she’ll leave after Season 9, he simply replies, “I hope not.”

“Doctor Who” Season 9 will premiere later in 2015.

Posted by:Chris E. Hayner

Chris E. Hayner is equal parts nerd, crazy person and coffee. He watches too much TV, knows more about pro wrestling than you do and remembers every single show from the TGIF lineup. You may have seen him as a pro-shark protester in "Sharknado 3." His eventual memoir will be called "You're Wrong, Here's Why..." TV words to live by: "I'm a firm believer that sometimes it's right to do the wrong thing."