She's starred opposite Ruth Wilson in Jane Eyre; played the lead role in 1980s' juke box musical Walking on Sunshine; got her woad on for Jez Butterworth's ultra-trippy Britannia; and recently hit the courtroom for Abi Morgan's The Split.
Is there anything the woman can't do?
(Judging by her "thing nobody knows about you" the answer may be no.)
Her London tips are pretty solid, too.
Check them out below.
What upcoming project(s) are you most excited about?
I just wrapped on Salisbury. A three part drama for BBC 2 telling the story of the Novichok poisoning in 2018 in Salisbury.
We shot it like a docu-drama and it had a very different feel to anything I’ve done before. It’s an important story and I’m proud to be a part of it.
What is your proudest professional accomplishment?
When I got the part of Nina in The Split I was on the ceiling with happiness for about a week. I really wanted to play her and be part of the show ...
I fought pretty hard to get the job and so it felt amazing!
If you could change one thing about your career, what would it be?
I wish I could go back to my 20s and live all the auditions and experiences again but with the knowledge I have now as a woman in her mid-thirties.
I think I would spend a lot less time worrying and a lot more time letting things go that past me by.
What do you hope to achieve that you haven’t yet?
I would love to work in film alongside TV and stage. I had a taste before but would like another ! Also, I need to do a play on Broadway once.
Outside of your family, who is / was your biggest inspiration?
I grew up watching all the MGM musicals and films and so people like Judy Garland and Julie Andrews always inspired me as a kid. I am inspired by many people...
I love Michelle Williams for her ability to transform endlessly... I watched her in My Week With Marilyn whilst I was performing in New York... that is a very strong memory of feeling inspired.
Tell us something nobody knows about you…
I am a good tap dancer.
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What do you love most about London?
I love the mish-mash of old and new...
It fascinates me that you can walk over Tower Bridge... past the Tower of London and then go and see a play in the newly built Bridge Theatre.
What would you change about London?
I wish people slowed down a bit and smiled at each other.
What is your favourite London pub / bar?
My favourite bar is Skylon on South Bank... Lovely views right in the heart of the south bank and great cocktails!
What is your favourite London restaurant?
I love J Sheekey in Covent Garden... the seafood is beautiful.
Where would you take someone on a London date?
I think I would take them to South Bank... so many gorgeous bars and restaurants and a walk by the river .... romantic.
If you’re visiting London, what’s the one thing you MUST do?
I really think Westminster Abbey is incredible. I love history and when I went there (for the first time quite recently) my mind was blown. Elizabeth I’s grave is there!