Written by Jimmy McGovern, Time is an anthology series that takes a typically gritty look at life in prison with the first season starring Stephen Graham and Sean Bean.
Season two features an all new cast with the exception of Siobhan Finneran who plays prison chaplain Marie-Louise.
The second season will take place in a women's prison and follow three very different inmates who are all put behind bars on the same day. The Last of Us star Bella Ramsey plays Kelsey with Whittaker playing Orla and Tamara Lawrence rounds out the trio as Abi.
The show will see them thrown together in an unfamiliar world where violence is ever-present but so is the ability to forge a community and maintain hope.
Also joining the cast for season two is the Bafta-winning Sophie Willan as well as Julie Graham, Alicia Forde, Lisa Millett, Faye McKeever, Kayla Meikle, James Corrigan, Nicholas Nunn and Maimuna Memon.
Time also represents Whittaker's first role since departing Doctor Who at the end of 2022.
As the show's first female Doctor, she first picked up the sonic screwdriver in 2017 as the thirteenth actor to play the iconic time traveller.
Whittaker was well-received in the role but the show itself received mixed reviews after her successful first season.
There were some complaints about the complexity of the storytelling and the hard to follow plotlines but Whittaker's performance remained well liked throughout.
She departed the show in the feature length special The Power of the Doctor which saw David Tennant return to the long-running sci-fi series as a new incarnation of the Time Lord.
Shortly after broadcast, it was confirmed that Tennant was not reprising his role as the Tenth Doctor but instead playing the Fourteenth Doctor.
Ncuti Gatwa will replace Tennant as the Fifteenth Doctor following this year's 60th anniversary specials.
Watch below: Jodie Whittaker felt 'energised' playing Doctor Who