returning to Showtime in 2021 for a limited series revival. The 10-episode Season 9 is already making waves with fans, many of whom are excited to see what the character has been up to.Since there will be eight years in between the Season 8 series finale and the Season 9 revival, Dexter fans may need a crash course of important moments to remember before they dive into the upcoming 10-episode limited series.Dexter Morgan worked for Miami Metro police in the forensics department.