WUNMI Mosaku is an up-and-coming British actress who's about to hit the big time with her role in Luther.

But, what else do we know about Idris Elba's co-star and the role she's playing in Luther?

Who is Wunmi Mosaku?

Wunmi was born in Zaria, Nigeria, on 31 July 1986.

She emigrated to Manchester, where she attended Trinity Church of England High School and Xaverian Sixth Form College.

After graduating from the Royal Academy of Dramatic Art in 2007, Wunmi made her stage debut at the Arcola Theatre in a production of Pedro Calderón de la Barca's The Great Theatre of the World.

In 2015, she played traffic warden Quentina in Capital, a BBC series based on author John Lanchester's novel of the same name.

She also appeared in Playtest, an episode of the anthology series Black Mirror, back in 2016.

Most recently, Mosaku won the 2017 BAFTA TV Award for Best Supporting Actress for playing Gloria Taylor in the TV film Damilola, Our Loved Boy.

She also played Detective Inspector Vanessa Mercer in Channel 4's compelling four-part drama Kiri, starring Sarah Lancashire.

What else has she appeared in?

Wunmi has also appeared in several other TV shows, including:

• Silent Witness in 2010
• Law & Order: UK in 2010
• The Body Farm in 2011
• Fearless in 2017

She has also had minor roles in the following films:

• Philomena (2013)
• Batman v Superman: Dawn of Justice (2016)
• Fantastic Beasts and Where to Find Them (2016)

Who does Wunmi Mosaku play in Luther?

Wunmi has taken on the role of new recruit DS Catherine Halliday.
She's joining forces with Idris Elba's Luther in a new story told over four episodes.

According to the BBC, the fifth series sees the pair “confounded by a tangle of leads and misdirection that seems designed to protect an unspeakable horror."

A preview for the series says: “When the moonless shadows of London give birth to a new nightmare, DCI John Luther must once again confront the depths of human depravity.

"But even as the case brings him closer than ever to the nature of true evil, a reluctant Luther must also face the ghosts of his own past. Striding back into the line of fire, he must choose who to protect… and who to sacrifice.

"Whatever his next move, it will have devastating consequences for those around him — and change John Luther forever."

Dermot Crowley, Michael Smiley and Patrick Malahide will reprise their respective roles - of DSU Martin Schenk, Benny Silver and George Cornelius.

Luther launched in 2010, with the second series in 2011 and a third in 2013. The last series was a two-episode fourth series which aired in December 2015.