The BBC has unveiled another teaser for the new series of Doctor Who.

Series 8 will begin on BBC One on Saturday 23 August with a feature-length premiere episode entitled ‘Deep Breath’.

“Clara, be my pal. Tell me, am I good man?”, Peter Capaldi’s Doctor asks in the 15-second clip. “I don’t think I know who the Doctor is anymore…”, says Jenna Coleman as Clara.

Watch the trailer…

> Here’s everything we know about Series 8 so far.

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