A dapper Benedict Cumberbatch and wife Sophie Hunter arrived at a downcast SW19 to support Andy Murray as he tries for his second Wimbledon title.
They'll be joined by the Duke and Duchess of Cambridge, Prime Minister David Cameron, Scotland First Minister Nicola Sturgeon and Hollywood star Bradley Cooper in the Royal Box.
London Mayor Sadiq Khan will also be in the Royal Box, as will actor Hugh Grant.
The Duchess was a guest at the All England Club earlier in the week when she revealed that Prince George already has a tennis racket and has taken a shine to the sport.
It will be William's first visit this year, and the couple will be hoping Andy can land his third Grand Slam.
And a host of former tennis stars who graced the tramlines of the court itself will take up seats to watch Murray take on Canadian Milos Raonic, including three-time champion Boris Becker, Bjorn Borg and Stefan Edberg, along with Chrissie Evert and Roy Emerson.
After a week of blue skies and warm weather, the start to the final day of Wimbledon was blighted by light rain.
The drizzle forced the start of play in the men's wheelchair singles final to be slightly delayed.
But fellow Scot Gordon Reid eventually added the inaugural Wimbledon wheelchair singles title to the doubles he won on Saturday.