Elenco de Dexter
| Ator/Atriz | Personagem |
|---|---|
| John Lithgow | Arthur Mitchell |
| Suzanne Cryer | Tarla Grant |
| David Lengel | IT Man |
| Al Vicente | Alberto |
| Jessica Camacho | Yasmin |
| José Zúñiga | Jorge Castillo |
| Preston Bailey | |
| Jack Axelrod | Nelson |
| Colin Hanks | Travis Marshall |
| Judson Mills | Floyd |
| Vanessa Marano | Rebecca Mitchell |
| Billy Brown | Mike Anderson |
| Bethany Joy Lenz | Cassie Jollenston |
| Yvonne Strahovski | Hannah McKay |
| Jonathan Banks | FBI Deputy Director Max Adams |
| Julia Campbell | Sally Mitchell |
| Ray Stevenson | Isaak Sirko |
| Wiley M. Pickett | Sheriff |
| Nico Cortez | Uni |
| Geoff Pierson | Thomas Matthews |
| Liza Lapira | Det. Yuki Amado |
| Charlotte Rampling | Dr. Evelyn Vogel |
| Tony Goldwyn | Dr. Emmett Meridian |
| Katherine Moennig | |
| Julie Warner | Lori Kirkwood |
| Edward James Olmos | James Gellar |
| Julia Stiles | Lumen Ann Pierce |
| Margo Martindale | Camilla |
| David Zayas | Angel Batista |
