We’re down to the wire until Halo 5: Guardians drops, threatening productivity with FPS goodness and multiplayer mayhem. The opening cinematic has been unleashed early, whetting our appetites until October 27.

Yes, that’s Nathan Fillion, and this actually isn’t his first time in the Halo universe. The Castle and Two Guys and a Girl star previously portrayed Sgt. Buck in 2009’s Halo 3: ODST and is now reprising that role for Halo 5: Guardians. It’s Malcolm Reynolds throwing grenades. Hey, remember when he told Jayne not to? Get it? Because he was in Firefly?

Photos via Xbox