Benedict Cumberbatch in Dr Who

Is Sherlock Holmes in Doctor Who?

Sherlock Regenerated Into the 12th Doctor on ‘Doctor Who’ As a BBC Doctor Who blog pointed out, incumbent Doctor Peter Capaldi guest starred on The All New Alexei Sayle Show — a comedy sketch hodgepodge from the mid-’90s — as the Sherlock Holmes opposite Alexei Sayle’s Dr.

Did Doctor Who and Sherlock crossover?

Yep, really. #WhoLock fans needn’t dream anymore, because the Twelfth Doctor Peter Capaldi has appeared in Sherlock’s legendary flat at 221b Baker Street. For those of you who can’t find that memory in your mind palace, fear not – because this crossover of dreams happened behind-the-scenes.