Timothée Chalamet? More like Twinothée Chalamet.

A contest to find the best Chalamet lookalike was held in New York City Oct. 27 and had a surprise guest: The Wonka actor himself.

To the delight of the hundreds of fans gathered at Washington Square Park in the Greenwich Village neighborhood of Manhattan, the 28-year-old casually crashed the competition, as seen in photos and videos shared on social media.

Some 20 contestants dressed up as Chalamet as well as his movie characters, such as Willy Wonka from Wonka, Paul Atreides from the Dune films and the star’s version of legendary singer Bob Dylan—which he plays in A Complete Unknown, a biopic he finished filming in New York City this past spring.

The real Chalamet initially made his way through the crowd incognito, wearing a black mask and baseball hat. He then sneaked up on two doppelgangers posing for photos and removed his mask, prompting shrieks from onlookers, Variety reported. The actor then posed for pics with several contestants and other fans.