Doctor Who: 10 Things You Didn't Know About The Twelfth Doctor
4. He Was The First Modern Doctor To Offer Jelly Babies
Most commonly associated with the Fourth Doctor, jelly babies have been carried by a handful of other incarnations too.
The Second, Sixth, Seventh, and Eighth Doctors have all carried the popular confection on their person over the years, but when the show came back in 2005, jelly babies appeared to be consigned to the past, as the Master was the only Time Lord to be seen eating them.
Peter Capaldi changed that in Mummy on the Orient Express, when he offered Professor Moorhouse a jelly baby from a fancy cigarette case. There's no reference to the case of jelly babies in the script for the episode, which suggests that this was an off-the-cuff additon, possibly even a cheeky ad-lib by Peter Capaldi.
Writer Jamie Mathieson confirmed this in a Reddit AMA following the broadcast of Mummy on the Orient Express. Responding to a question about Peter Capaldi's input on scripts, Mathieson said:
"The jelly babies were his idea! Which I think we can all agree was genius."
Of course it was Peter Capaldi, long-time fan of the show, who suggested such a brilliant and memorable callback to Classic Who. We wouldn't be surprised if he'd been carrying that jelly baby case around just waiting for the right opportunity!