Grunberg is tapped for a guest arc and will reprise his role as telepathic detective Matt Parkman on the NBC revival series, Entertainment Weekly reported.
While NBC has not released an official statement regarding the latest casting news, the actor previously hinted at his return via a Twitter post.
"I miss playing this guy," he wrote along with a picture of his character on the original series.
Prior to Parkman, Jack Coleman, Masi Oka and Jimmy Jean-Louis were booked to reprise their roles as Noah Bennet, Hiro Nakamura and The Haitian/Rene respectively.
"Heroes Reborn" takes "on the ultimate struggle between those with extraordinary abilities and those with nefarious motives to hunt and harness their powers.