If you saw a police officer at the #BostonMarathon who resembled Mark Wahlberg, here's why

And they're off! The 120th #BostonMarathon has begun!

— Boston Marathon (@bostonmarathon) April 18, 2016

The #BostonMarathon is being run today, and many might have spotted a face that looked familiar:

.@mark_wahlberg wishes @USArmy #warriorgames athlete Vet Sgt. Stefan LeRoy good luck before #bostonmarathon @armyWTC pic.twitter.com/4tCVGu1Fg3

— Warrior Games (@warriorgames) April 18, 2016

If people were wondering why they might have spotted a police officer who looked a lot like the Wahlberg, it’s because it was him:

One person who got to the #BostonMarathon finish line before anyone else: Mark Wahlberg https://t.co/IHur5dIiv7 pic.twitter.com/qa1Dj3iVUl

— The Boston Globe (@BostonGlobe) April 18, 2016

Wahlberg was filming a scene for a movie about the Boston Marathon bombings three years ago:

Okay no one freak out… BUT THIS HAPPENED!!! #WBZ #BostonMarathon pic.twitter.com/A8aBhLJDWB

— Bree Sison (@BreeSison) April 18, 2016

Check out Mark Wahlberg at #BostonMarathon finish line this morning filming scene for #PatriotsDay movie.#WBZ pic.twitter.com/IblvRIkBmm

— Scott Sullivan (@SliceOfSully) April 18, 2016

Mark Wahlberg taking a quick break in the movie shoot at the Finish Line #BostonMarathon pic.twitter.com/b3nxMGgGOT

— Karen Anderson (@karenreports) April 18, 2016

When Marky Mark says hello to you directly because the media area is empty… #marathonmonday pic.twitter.com/cMhdqEyg2P

— Sarah G. Fisher (@SarahGraceFish) April 18, 2016

So do the cops get double pay for working #BostonMarathon and being an extra in Mark Wahlberg's #PatriotsDay?

— Amy Steele (@msamysteele) April 18, 2016