That’s right, Peter Capaldi turned down an audition for the 8th Doctor! From Doctor Who TV:
In a parallel universe Peter Capaldi is the 8th Doctor. The man himself has revealed that he had the opportunity to audition for the role, but turned it down.
Speaking at the Series 8 DVD launch event: “I never begged to be in Doctor Who. I even turned down the opportunity to audition for the role of Doctor Who in the one that Paul McGann did.”
And the reason?: “I knew I wouldn’t get it. I just didn’t want to have the disappointment, and go through all the palaver of jumping through hoops for something that I would never get…. I knew it was an American pilot thing, and I knew they would go for somebody who was well known, which Paul was.”
He added: “I loved the show so much that I didn’t want to have anything to do with it unless it was, unless it was gonna be me!”