Ruby Sunday
From Tardis Wiki, the free Doctor Who reference
"Ruby Sunday" is a title based upon conjecture.
Check the behind the scenes section, the revision history and discussion page for additional comments on this article's title.
Ruby S was an individual mentioned in the Fifteenth Doctor's diary, although her surname was obscured. (PROSE: First Day of the Doctor [+]Loading...{"page":"31","1":"First Day of the Doctor (short story)"})
Behind the scenes
The character's name was only visible as "Ruby S" in First Day of the Doctor, however other non-fiction included in the annual and concurrent promotional material revealed her full name to be Ruby Sunday.