Michael C. Hall Dexter Morgan Actor Jennifer Carpenter Debra Morgan Actor C.S. Lee Vince Masuka Actor Desmond Harrington Joey Quinn Actor Luna Lauren Velez Lt. Maria Laguerta Actor David Zayas Angel Batista Actor James Remar Harry Morgan Actor Colin Hanks Travis Marshall Guest Star Edward James Olmos Professor James Gellar Guest Star Yasiin Bey Brother Sam Guest Star Geoff Pierson Captain Tom Matthews Guest Star Aimee Garcia Jamie Batista Guest Star Billy Brown Det. Mike Anderson Guest Star Brea Grant Chambers Guest Star Evan George Kruntchev Harrison Morgan Guest Star John Goldwyn Executive Producer Sara Colleton Executive Producer Clyde Phillips Executive Producer John Dahl Director Lauren Gussis Writer