The previous Doctor was engaged in a close relationship with his sidekick Clara that even led to a passionate kiss.
But Capaldi, 56, insisted his Time Lord would not be following in Matt Smith’s footsteps by getting intimate with 28-year-old Coleman’s character.
"There’ll be no flirting, that’s for sure," he told the Sunday Times Magazine. "It’s not what this Doctor’s concerned with. It’s quite a fun relationship, but no, I did call and say, ‘I want no Papa-Nicole moments’. I think there was a bit of tension with that at first, but I was absolutely adamant.”
The Papa-Nicole comment relates to a series of 1990s Renault Clio car adverts which hinted at a romance between an older man and a younger woman, before they were revealed to be father and daughter.
Capaldi also had good news for those Doctor Who purists who believe the show’s storylines have become over the top.
"It’s going to be a bit different from what we’ve seen over recent years. A bit more gravity," he said. "Some situations are more sombre and I think there are more rooted dramatic scenes. Over the past two or three years, which I’ve loved, there has often been a breathless vigour; we still have that attack, but we have another level of drama, another tone. And the scenes are longer.”
"I didn’t want to be Doctor Who in a Doctor Who I didn’t like," he said. "I had to be convinced the show was going in a direction I was interested in.