"I'm delighted", Tennant, who played the 10th Doctor on the BBC series, told Stephen Colbert Wednesday of the newly minted female Doctor.
However, viewers will have to wait much longer to see her fully take over the reigns as the show's bosses hinted series 11 won't be broadcast until late 2018.
Whittaker will be the 13th person to play the Doctor, and her outing in Trust Me left fans feeling increasingly excited at the prospect of seeing her as the Time Lord. She's a mate of mine.
In fact, her Broadchurch co-star was one of the first people she picked up the phone to before her casting was announced.
"But it's brilliant, ' the actor admitted and he continued to say he can't think of anyone better 'to join the gang". They were like 'Who's the weaselly-looking guy?
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It shouldn't be Democrats or Republicans. "It should be everybody unifying behind our president". The three-minute conversation was recorded in a video published by Mr Calvo's office.
He said: "Whenever the Doctor changes, there's a backlash because that's a character people love".
When Whittaker finally makes her debut as the 13th Doctor, Tennant believes that all the social media noise about her "will be irrelevant nearly immediately". Who's this? I like the last guy.
Wollaston added that "this part doesn't give her the opportunity to show the wit that I hope she will bring to the Tardis, and which that role requires". This show is dead to me. "The Doctor can be whatever he needs to be", the star explained. "I resign from the Internet". "It's about finding the right performer at the right time and that's Jodie without a doubt".
The 13th Doctor may have only been seen on screen for around a minute, but there are already fans that made a decision to cosplay the new Time Lord for Doctor Who.