The role of Clara in the past few seasons of the beloved British science fiction series "Doctor Who" has turned into one of the fanbase's favorite assistants for the time traveling alien, but now, three years after first getting the role during David Tennant's run as The Doctor, it's time for Jenna Coleman's "Doctor Who" time to be over.

At 29 years of age, Jenna Coleman from "Doctor Who" has a fairly impressive career, having been a part of some interesting projects such as Marvel's "Captain America: First Avenger" and the 2012 miniseries "Titanic" - but now, it seems she's going to more serious roles beyond the show that made her a star.

According to The Guardian, after being the assistant to the eleventh and twelfth incarnations of The Doctor (Tennant and currently Peter Capaldi), Jenna Coleman from "Doctor Who" has quit the series to portray Queen Victoria in an upcoming period drama.

As IGN reports, Jenna Coleman's "Doctor Who" departure hasn't been confirmed by producers or generally the BBC, while ITV, the channel the actress would be playing the famous monarch in the upcoming show hasn't made "any announcements about casting" as of yet, so it might be a while until the information is confirmed.

Most famous for her role in the science fiction show, Jenna Coleman from "Doctor Who" was recently involved in some major celebrity gossip, as it was said she was being courted by Prince William's brother, Harry, after the two were spotted cozying it up at a party following her split from "Game of Thrones" actor Richard Madden.

According to The Mirror, the Time Lord's assistant has supposedly already filmed her last scenes on the beloved show and her last appearance will be airing before this year's Christmas special, as she will begin prepping for the period drama that's supposedly budgeted for $15.5 million.

In any case, Jenna Coleman's "Doctor Who" appearance has been the longest-running assistant the Time Lord has had since the series was rebooted in 2005.