‘The Last Man on Earth’s’ Season Premiere Has Surprises in Store (VIDEO)

THE LAST MAN ON EARTH: THE LAST MAN ON EARTH premiering Sunday, Sept. 25 (9:30-10:00 PM ET/PT) on FOX. ©2015 Fox Broadcasting Co. Cr: x

Stranger danger! Last we saw The Last Man on Earth’s Phil (Will Forte), he and his pals were about to be ambushed by three people in hazmat suits.

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One of the invaders is a familiar face to LMOE viewers: Pat Brown (Mark Boone Junior), the paranoid survivor encountered by Phil’s brother, Mike (Jason Sudeikis), when he returned to Earth in March. But after the comedy was able to pull off a top-secret Will Ferrell cameo in Season 2, Forte is being coy about who else will pop up in the Season 3 opener.

“I wasn’t sure who would play the characters in those hazmat suits,” the star and exec producer says. “But as we started writing, it became clearer who’d be perfect. I’m excited for viewers to find out.”

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The fresh faces aren’t the only new things in store for the gang. With Carol (Kristen Schaal) pregnant, Phil will eventually have to go from acting like a child to helping raise one. “Phil is a bumbling idiot, but his intentions are good,” Forte says. “So he’ll still screw up along the way, learning from each mistake…but not as much.”

And in the exclusive video below, Schaal interrogates Forte with a few of her own burning questions.

The Last Man on Earth, Season Premiere, Sunday, September 25, 9:30/8:30c, Fox.