The new store offers an assortment of merchandise from The Tonight Show with Jimmy Fallon, and the new attraction opening in April.
The actor is the final addition to this year's Celebration film talent.
The actor joins Matthew Davis and Warwick Davis of Harry Potter alum scheduled to appear.
Announced on The Tonight Show with Jimmy Fallon, the late-night show will also be coming to down to film for the week to celebrate the ride's opening.
The event - which runs from Feb 4 to March 25 - will also feature 6 new parade floats.
Event Will Feature The Largest Harry Potter Expo In Event History Along With New Panels And Demonstrations Featuring Harry Potter Creative Talents.
2 all-new interactive parade floats based on the hit film will be featured in Universal's Superstar Parade
Beginning Dec. 3 and running daily through Jan. 1, celebrate the Holidays at Universal Orlando.
In Spring 2017, fans will be immersed in the world of America’s No. 1 late-night talk show “The Tonight Show” in a brand-new attraction
The event will now run 49 consecutive nights featuring the Mardi Gras parade every night.