To celebrate the moment when Humans and Vulcans made first contact (April 5, 2063), thought I’d share a photo from the first day of the STAR TREK BEYOND shoot. Here I am hanging with two of my favorite people to ever work with.

And just for fun, I’ll send the first person who correctly guesses the identities of these two actors an official STB crew t-shirt and signed STB poster. Just leave your guesses in the comments section below. And a small note—because the shirt contains spoilers for the film and the poster hasn’t been finalized yet, I won’t be able to send it out until closer to the STB release date this July, but rest assured you’ll get it as soon as possible.

I know this will probably be a tough one since the casting of these two actors hasn’t been announced yet and you won’t find them listed on IMDb. So here’s a hint–I’ve worked with them both before STB. Good luck.

UPDATE (4/5/16, 11:35PM PST): Thank you everyone for your guesses. Several people guessed correctly and we’ll be sending all of them the t-shirt and posters. Once we’ve reached out to them, we’ll announce the names and also the identity of the two actors.

UPDATE (4/6/16, 4:30PM PST): We have the list of everyone who guessed correctly by end of the day yesterday and the identity of our two alien friends, click here to see.