The actor, who has become the first female to grab the role of the iconic Time Lord, says she was panicking during the whole process as there was a long gap between finding out she had got the job and the news being made public, reported Digital Spy.
"I didn't know the exact details but I knew there was going to be an attempt at a brilliant reveal - and I got so super paranoid in the lead-up to it. I would panic because I couldn't remember what I was told and what I wasn't allowed to say. I knew the big reveal would happen in July and they wanted it to be an amazing moment for me.
"Doctor Who" series 11, starring Jodie, is expected to launch in late 2018.