Claudia Winkleman (in-universe)

Claudia Winkleman was a presenter and a fan of Doctor Who.

During Red Nose Day 2011, she met and travelled with the Eleventh Doctor. (TV: The Doctor Drops In)

During Red Nose Day 2013, she unsuccessfully attempted to seduce the Eleventh Doctor. (TV: The Doctor Appears)

She attended Sprout Boy's Christmas party and met the Twelfth Doctor. (TV: Sprout Boy meets a Galaxy of Stars)

Behind the scenes
Claudia Winkleman's half-sister is Sophie Winkleman, who played Kelly Westwood in the Big Finish audio stories The Eight Truths and Worldwide Web.