Michael C. Hall Dexter Morgan Actor Julie Benz Rita Bennett Actor Jennifer Carpenter Debra Morgan Actor Erik King Sgt. James Doakes Actor James Remar Harry Morgan Actor Luna Lauren Velez Lt. Maria LaGuerta Actor David Zayas Angel Batista Actor C.S. Lee Vince Masuka Guest Star Geoff Pierson Captain Tom Matthews Guest Star Christina Robinson Astor Bennett Guest Star Daniel Goldman Cody Bennett Guest Star Christian Camargo Rudy Cooper Guest Star Devon Graye Teenage Dexter Guest Star Mark Pellegrino Paul Bennett Guest Star Sam Witwer Neil Perry Guest Star Dominic Janes Young Dexter Guest Star Rudolf Martin Carlos Guerrero Guest Star Scott William Winters Det. McNamara Guest Star Angela Alvarado Rosa Nina Batista Guest Star Brad William Henke Tony Tucci Guest Star Daniel Cerone Writer Tony Goldwyn Director Drew Z. Greenberg Writer Melissa Rosenberg Writer Lauren Gussis Writer Kevin R. Maynard Writer Clyde Phillips Writer Steve Shill Director James Manos Jr. Writer Michael Cuesta Director Tim Schlattmann Writer Robert Lieberman Director Keith Gordon Director