Watch: David Tennant says choosing the next Doctor Who is a 'big decision'
The actor has played the Time Lord for three series with the currently airing 13th season being her last before three special instalments
However her replacement has not yet been cast - which is something Whittaker is happy about.
In an interview with The Guardian, the 39-year-old reflected on how she might feel when someone else does take over from her.
“I don’t mean in a patronising sense, but I think it will be more like a maternal [thing]. Even if they’re 20 years older than me, there’ll be that thing of knowing: ah, you are going to have the best time and you’re going to smash it.
“But the good thing is, for me now, it hasn’t been cast, and I don’t have to know about it. So it’s still mine, which is really lovely for me, because it just means that I have my joy of sharing the season and going: I hope everyone’s enjoying it,” she explained.
Speculation has been rife about who could replace Whittaker, with many rumours stemming fueled by the news Russell T Davies would be returning as showrunner.
Stars of his Channel 4 hit It’s a Sin Lydia West and Olly Alexander have had their names put forward, but Alexander has issued a flat denial.
The final episode of the current series is set to come to an end tomorrow (Sunday 5th December) and the three one-off episodes are expected to arrive in 2022.
Watch: Jodie Whittaker leaving Doctor Who after three 2022 specials
Whittaker, who was the first woman to play the iconic role, announced her departure from the sci-fi series back in July.
She said in a statement: “In 2017 I opened my glorious gift box of size 13 shoes. I could not have guessed the brilliant adventures, worlds and wonders I was to see in them."
he went on: "My heart is so full of love for this show, for the team who make it, for the fans who watch it and for what it has brought to my life."