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These pictures show new Time Lord Peter Capaldi racing through freezing dark Victorian streets dressed only in his bed clothes.

In some of the first scenes filmed for the new series, the 12th Doctor Who wrapped himself up in blankets between takes on the foggy streets of Cardiff Bay on Monday.

Excited fans stood in the cold and wet to watch Capaldi in action.

Tiia Öhman said: "It was raining and cold but it was all worth it to see the Doctor riding a fake horse and wearing nothing else but a nightgown.

"He waved to us all like a proper hero, then hopped off the horse and came to say hello to everyone.

"He kept doing it after every take, making sure everyone got a photo if they wanted one.

"He's charming and very nice to the fans."

The action-packed chase scene had Capaldi riding in a horse and carriage before breaking free and galloping through the streets after a mystery figure.

But Capaldi admitted to fans he was a little scared of the horse he had to ride.

He told them: "I'm afraid of that horse and the horse knows it."

The late night shoot also saw the Scottish actor sat on a mechanical mare as it raced along the fog-filled streets.

The 55-year-old - who rose to fame as foul-mouthed spin doctor Malcolm Tucker in the BBC show The Thick of It - took over from Matt Smith as the new Doctor at the end of the Christmas Day special.