Fans have been taking to Twitter to celebratePaul Ruddon his 52nd birthday, even if most of them just can’t believe he’s actually that old. Looking virtually the same now as he did starring inCluelessover 25 years ago, Rudd’s apparent inability to age has led some to wonder if he may in fact be a vampire. In any case, the man is now supposedly 52 years old, and fans everywhere are praising theAnt-Manstar on his special day.

Leading the charge is Rudd’sAvengers: Endgameco-star Mark Ruffalo, who posted an image of Rudd wearing theInfinity Gauntlet. Thinking he may have solved the mystery, Ruffalo writes: “Happy birthday, Paul Rudd! Did I find the secret behind your eternal youth?”

ATommy Doylefan account based on Rudd’s character inHalloween 6: The Curse of Michael Myersposted two images of the actor and tweeted, “Happy 52nd birthday to Paul Rudd. I still wish he was inHalloween Kills.”

“Omg it’s paul rudd’s 27th birthday everyone cheer,” another tweet reads alongside a couple of images of Rudd. If you didn’t know he was really 52, it’d be pretty easy to believe he had just turned 27.

Another fan posts side-by-side photos of Rudd in 1997 and 2020, adding in the caption: “…and this is how you age when you’re unproblematic.”

“happy birthday to this man who ages like a fine wine.happy birthday, paul rudd,” says someone else.

And Elizabeth Banks, who co-starred with Rudd inRole Models, posted a picture of herself and Paul with a tweet that reads: “Happy birthday to my forever favorite on-screen boyfriend/brother (it’s not weird)”

The perception that Ruddcannot physically ageis not lost on the actor. During aCluelesscast reunion in 2019, he was asked about his anti-aging secret, and Rudd joked that he’s “80 years old on the inside. In here, pure darkness - and a little moisturizer.”

Along with his memorable roles in 90s movies likeCluelessandRomeo + Juliet, Rudd is also acclaimed for his roles in various hit comedies likeAnchormanandThe 40-Year-Old Virgin. He is probably best known for playing Scott Lang in the Marvel Cinematic Universe, which includes starring in his own solo movieAnt-Manand its sequelAnt-Man and the Wasp. He’ll be back in the role once again for the upcoming sequelAnt-Man and the Wasp: Quantumaniain 2022.

Rudd can next be seen in the movieGhostbusters: Afterlifewhen it is released this year. The movie serves as a direct sequel to the first twoGhostbustersmovies and will feature Rudd as an original character new to the franchise. Rudd can also be seen in the official trailer playing a teacher who’s apparently obsessed with the classic Ghostbusters team from the 1980s. Following multiple release date delays, the sequel is currently scheduled to be released in theaters on Jun 17, 2025.

Given that it’s Rudd’s birthday, it wouldn’t be a bad time to watch one or two of his movies to celebrate the day. Let us also take the opportunity to wish a very happy 52nd birthday to Paul Rudd!