"I really can’t wait to step back in and get to work again," Whittaker told The Hollywood Reporter.
"It’s such an incredible role. It's been an extraordinary journey so far and I'm not quite ready to hand it over yet."
It was announced in July 2017 that Whittaker had been picked as the 13th Doctor, succeeding to Peter Capaldi.
The casting decision was met with excitement as Whittaker was the first woman to ever get the part since Doctor Who's debut in 1963.
The show first ran from 1963 to 1989, before being brought back in 2005 in an acclaimed revival.
Christopher Eccleston, David Tennant, and Matt Smith have all played the Time Lord.
Season 11, the first one featuring Whittaker, will wrap up on 9 December with an episode titled The Battle of Ranskoor Av Kolos.
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