Paul Rudd Didn't Change Much over the Years and His Throwback Photos Prove It

Actor Paul Rudd turned 52 on April 6 but does not seem to have aged, with multiple throwback pictures showing that his face has remained the same through the years.

On April 6, "Ant Man" star Paul Rudd celebrated his 52nd birthday, and his friend and "The Morning Show" star Jennifer Aniston wished him a happy birthday.

She took to her Instagram Stories to share images of them along with well-wishes. In her posts, Aniston could not resist noting that Rudd does not seem to age.

She posted a picture from a scene from their 2012 comedy "Wanderlust." In the post's caption, Aniston wrote, "Happy birthday #PaulRudd!! You don't age, which is weird - but we celebrate you anyway."

In another post, Aniston shared a picture that showed her and Rudd engaged in a pillow fight from their joint GQ cover story published in 2012 to promote "Wanderlust."

She also shared a GIF that showed them hugging awkwardly in "Wanderlust." In the post's caption, Aniston expressed her love for Rudd, writing, "I love you!!!!"

Actress Elizabeth Banks also shared a picture of herself and Rudd on Twitter and wished him a happy birthday, writing, "Happy birthday to my forever favorite on-screen boyfriend/brother (it's not weird) #PaulRudd. ?."

When asked how he has maintained his mysterious youthful glow, Rudd offered a funny response.

The pictures Aniston and Banks posted showed Rudd having the same face with no changes. The actor has remained ageless through the years, which continues to amaze his friends and co-stars.

Last September, Reese Witherspoon shared a selfie of herself and Rudd. Fans would have been forgiven for thinking it was a recent snap, but she revealed in her caption that it was in 1996.

The picture Witherspoon shared is among many showing how Rudd has somehow managed to keep himself from aging through the years.

Many fans have wondered what the secret behind his ageless look is. When asked how he has maintained his mysterious youthful glow, Rudd offered a funny response.

He said he is 80 on the inside, adding that within him was pure darkness and a little moisturizer. Such an answer would not have been surprising to his many fans who know him for his funny character and love him for it.

Meanwhile, Rudd is not the only celebrity who does not seem to age. Other celebrities that have maintained their youthful glow include Keanu Reeves, Jennifer Aniston, Gabrielle Union, Rihanna, Bianca Lawson, Beyoncé, Jay-Z, and many more.