'Doctor Who' Cast: Jenna Coleman Quits Role as Doctor Who's Assistant to Play Queen Victoria in ITV's 'Downton Abbey Replacement

Peter Capaldi and Jenna Coleman
'Doctor Who' co-stars Peter Capaldi and Jenna Coleman |

Jenna Coleman is set to portray the young Queen Victoria in ITV's new drama series "Victoria,' after saying goodbye to her role as Doctor Who assistant Clara Oswald.

"I have left the Tardis - it's happened," she revealed to BBC Radio 1 on Friday. "I've filmed my last scenes."

After spending three years on the hit series, Coleman stated that her exit would be shown on BBC One "at some point this season."

The actress is set to play Queen Victoria, a character known for being a "rebellious teenager." Crowned at 18, she turned into a powerful monarch whose time in power was said to have been twisted with unpleasantness and controversy.

Coleman said she was "delighted" to star in the "ambitious" ITV drama "Victoria,' which will follow the early years of the monarch's reign for 63 years as well as her courtship and marriage to Prince Albert.

"She is a vivid, strong, inspirational and utterly fascinating woman in British history and I can't wait to tell her story," she said.

Queen Victoria has previously been played in the big screen by Emily Blunt in the 2009 movie, "Young Victoria.'

The 29-year-old actress, who also took on roles in "Death Comes to Pemberley,' "Dancing on the Edge' and ITV's "Emmerdale,' made her first "Doctor Who' appearance in 2012 alongside former Doctor Matt Smith.

In her interview with Radio 1 Breakfast show host Nick Grimshaw, Coleman said it had been "emotional" saying goodbye to the series and filming her last scenes with current Doctor Peter Capaldi.

"It's been in the works for a very long time," she said, "[Writer] Steven [Moffat] and I sat down a year and a half ago and tried to work out the best place to do it and tell a really good story."

While Coleman did not share further information about the new episodes, she hoped for an impressive story to unfold.

"We're not going to give any details but it will happen at some point this season... We worked out a really good story arc out so hopefully people will love it," the "Captain America' actress said.

"Doctor Who' season nine, which will be Coleman's last, will make its premiere on BBC One this Sept. 19.