A couple months ago, it was unclear whether or not Eric Millegan would reprise his role as Zack Addy on Bones.
But TV Guide has confirmed the good news:
Millegan will return on the fourth season finale, which airs May 14.
"And it was nice to have him back," Tamara Taylor said. "We all have missed him."
Eric Millegan will have guest-starring competition on Bones, as Stewie is also set to appear on the show.