The 42-year-old was filming scenes on Southwark Bridge this afternoon dressed as his character, DCI John Luther.
Wearing his trademark grey tweed coat, grey shirt and red tie, Idris looked in his element as he filmed a scene with another male character by the bridge.
We cannot wait for this to return!
The special two-part series will keep fans on the edge of their seats, as Idris promised earlier this month that the forthcoming special will be "explosive".
He said: "It's great we've been able to do this Luther special. John is so close to my heart, he's part of me. The fans won't be disappointed with his return – it's explosive and definitely goes up a gear!"
A synopsis for the special reads: "Luther's back. Pitted against his most chilling adversary yet, haunted by the ghosts of his past and hell-bent on retribution, he's drawn into a terrifyingly complex case that pushes him closer to the edge than he's ever been."
The Luther special is due to air on BBC One this autumn.
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