Sheridan Smith, an English actress well known for her performances in comedy shows such as Gavin & Stacey, Love Soup and Grownups amoung others.
In fact, the Prince, 32, reportedly disclosed that he was a fan of Gavin & Stacey.
The BAFTA TV award winner, 33, took to Twitter to express her enthusiasm for this honor.
“An unforgettable day…!” she wrote on Twitter alongside a picture from the event.
An unforgettable day…! pic.twitter.com/ydiIxndNlr
— Sheridan Smith (@Sheridansmith1) May 21, 2015
Prince William is also expected to attend Tusk Trust 25th anniversary gala at Windsor Castle.