Matt Damon is one of the most successful actors in Hollywood right now with several movies and franchises under his belt.
Being in so many well-liked films means that he's easily recognisable.
So, when a photo from 1961 emerged showing what looked to be Matt Damon, the Internet went crazy.
According to Viral Thread, the photo is of Reddit user CoffeeandTrout’s dad who is now 75 and lives in Seattle.
The resemblance is so uncanny however, that many have joked that Matt Damon is actually a time-traveller.