Stan Lee was born on December 28, 1922.

This means that he would have turned 99 today.

Unfortunately, the late comic book legend passed away in 2018 at the age of 95.

Many actors took to social media to wish Lee a happy 99th birthday regardless.

Mark Ruffalo tweeted, “Thinking of Stan Lee and everything he’s done for our extended Marvel family today.”

William Shatner tried to get the hashtag #STANLEE99 trending.

Actor Kevin Smith paid tribute to his stories that “continue to shape pop culture.”

One fan wrote about how his comics “spread important messages of hope and unity.”

Although Lee may be gone, the legacy he left behind is far from forgotten.