Who was Dexter's showrunner for seasons 6 through 8?

Scott Buck was Dexter’s showrunner for seasons 6 through 8. He assumed the position after Chip Johannessen’s single-season tenure and remained in charge through the original series finale.

Buck had already worked on Dexter for several years, joining as a writer and producer before becoming an executive producer. His first season as showrunner was season 6, which premiered on October 2, 2011, and followed Dexter’s investigation into ritualistic murders with religious symbolism. Seasons 7 and 8 continued under his leadership, with season 8 ending the original run in 2013.

Clyde Phillips is often confused with Buck because Phillips created the early creative identity of the show and later returned for Dexter: New Blood and Dexter: Resurrection. Chip Johannessen, meanwhile, led only season 5. Melissa Rosenberg was an important writer and producer, but she was not the showrunner for seasons 6–8.