The new additions to the London attraction were unveiled to the media this morning, ahead of their first wedding anniversary later this month.
The Duke and Duchess of Cambridge engagement announcement is the scene re-created, with Middleton's double wearing an exact recreation of her blue Issa dress.
"The Queen is the most popular attraction but since the royal wedding fever we've had people coming in to see William when he was without Catherine," Liz Edwards from Madame Tussauds said.
"Catherine has her own star quality so we are expecting a lot of people to come, especially with the Easter weekend coming."
Madame Tussauds around the world, including New York and Amsterdam, will all unveil waxworks for the royal couple, with each wearing a different iconic outfit.
Meanwhile, work is currently underway on a new £150,000 figure of Queen Elizabeth. Designed to celebrate the upcoming Diamond Jubilee, the waxwork is scheduled to be unveiled in mid-May.
> Duchess of Cambridge Kate Middleton plays hockey with Olympic team
> Queen's Diamond Jubilee weekend event details confirmed