21/03/2012 06:49 GMT | Updated 22/03/2012 07:12 GMT

Jenna-Louise Coleman Unveiled As Doctor Who's New Companion (PHOTOS)

Doctor Who's new companion has been a closely guarded secret, but it's finally out of the Tardis - Jenna-Louise Coleman is the latest young lady set to accompany the Timelord on his planet-saving adventures.

Coleman's new role was unveiled at a BBC press conference this morning, where the actress said she was a huge fan of the show, commenting: "I want to get started already."

She added: "Matt Smith did my audition with me. It was fun and I felt like we were in it together."

Asked who her show favourites were, she dug into recent archives, naming Karen Gillan, who is still in the show, and Billie Piper.

It's a big week for Coleman, as she also stars in Julian Fellowes' TV telling of Titanic, in which she plays Annie Desmond.

The 25-year-old actress was formerly in Emmerdale, where she appeared as lesbian Jasmine Thomas. Her CV also includes Waterloo Road, and the role of Connie in Captain America: The First Avenger.

Doctor Who's current companion Amy Pond, played by Karen Gillan, is due to leave the show with an emotional exit later this year.

Matt Smith will continue to play the Doctor. He and Gillan were recently spotted filming scenes for the sci-fi show in Mexico and Spain, so we can expect some colourful episodes before Pond makes her final departure.

Series writer Steven Moffat was tight-lipped on the subject at last night's Royal Television Awards, saying only that he had got "who he wanted" for the role.

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Joanna-Louise Coleman in pictures...

Jenna-Louise Coleman