Michael C. Hall Michael C. Hall

It looks like Dexter Morgan (Michael C. Hall) is finally moving past his grieving period.

Battlestar Galactica's Edward James Olmos joins Dexter

After struggling with his inner "Dark Passenger" last season following the gruesome murder of his wife, Rita, Dexter has an important message for fans: "I wanted to be the first to tell you, I'm feeling like my old self again," he tells the camera as his eyes slowly turn to red. "Renewed. Recharged. Refocused. With nothing to stop me from being me."

Dexter returns this fall on Showtime.

Watch the full preview here: