Jenna Coleman says Maisie Williams "fit right in" on the set of 'Doctor Who'.

Jenna Coleman

Jenna Coleman

The 'Game of Thrones' actress joined the cast of the BBC One sci-fi drama for the upcoming ninth series and Jenna - who plays the Doctor's companion Clara Oswald - has revealed she had no trouble getting to grips with the storylines.

Asked how the dynamic changes between her and Peter Capaldi - who plays the titular Time Lord - when guest stars are on set, Jenna said: "The two of us are always behaving as stupidly as we do, it's been lovely having Michelle [Gomez] back, she's always a laugh. Maisie is wonderful, I was a really big fan of hers before she came to 'Doctor Who', she fits right in so it's been really great having her join us. One of the most wonderful things about the show is every episode feels so different, it feels like a whole new show in a way."

The 29-year-old star - who originally planned to quit the much-loved show after the eighth series - has been enjoying filming her own stunts for the next instalment.

She explained: "I've done a lot of hanging upside down this series - upside down on a cliff in Tenerife was new, but surprising, it looks so easy but it's not at all. It was tricky because we could only do it in minute spurts, filming the scenes. I also had a scene where I was hanging outside of the TARDIS too, so it seems to be one of my specialities this series!"