| Episode cast overview, first billed only: | |||
| Michael C. Hall | ... | Dexter Morgan | |
| Julie Benz | ... | Rita Bennett | |
| Jennifer Carpenter | ... | Debra Morgan | |
| C.S. Lee | ... | Vince Masuka | |
| Luna Lauren Velez | ... | Lt. Maria LaGuerta (as Lauren Velez) | |
| David Zayas | ... | Sgt. Angel Batista | |
| James Remar | ... | Harry Morgan | |
| Jimmy Smits | ... | ADA Miguel Prado | |
| Desmond Harrington | ... | Det. Joseph 'Joey' Quinn | |
| David Ramsey | ... | Anton Briggs | |
| Valerie Cruz | ... | Sylvia Prado | |
| Anne Ramsay | ... | Ellen Wolf | |
| Jason Manuel Olazabal | ... | Ramon Prado | |
| Liza Lapira | ... | Det. Yuki Amado | |
| Kristin Dattilo | ... | Det. Barbara Gianna | |
Miguel discovers Dexter has killed at least two people and is accepting of his unique viewpoints. Dexter's true body count and his alternate identity remain unknown to Miguel. Dexter tries to distract Miguel with a plan to release a jailed murderer and kill him, but soon realizes that Miguel has a far darker plan for his vigilantism than Dexter could have imagined. Debra is upset when she realizes that she may be partially responsible for the death of Freebo's skinned doorman, Wendell Owens. Dexter is distressed when he learns this his old friend Camilla Figg is dying of cancer. Angel asks Barbara out on a date. Sylvia invites Rita to work alongside her as an estate agent. Debra and Quinn apprehend Ramon when they find him torturing people he believes to know the whereabouts of Freebo. After Quinn praises Debra's work in front of LaGuerta, Debra tells him about the internal affairs investigation into him.
Miguel Prado is very close to Dexter, fishing with him in his boat. Dexter thinks that he can support simple joys of male bonding. But when Miguel decides to step further, Dexter brings the file of a white racist killer to test how far Miguel would go in his intent. However, Miguel surprises him and plots a plan to capture the despicable assassin. Meanwhile, Freebo's watchman Wendell Owens is murdered by the Skinner. Debra notes that his two last victims, Wendell and Javier, where murdered after her questioning them and Dexter and she conclude that the unbalanced Ramon might be the Skinner. Maria meets the lawyer Ellen Wolf that uses Maria's inside information to self-promote and damage the career of Miguel Prado. Detective Barbara Gianna finally accepts to have dinner with Angel.
"Si se Puede" is a reasonable episode where Miguel directly involves himself in Dexter's murder. My initial guess about the identity of the Skinner was totally wrong, so I have changed my review. My vote is seven.
Title (Brazil): "É Possível" ("It Is Possible")