List of Dexter characters
On a visit to his sister, Dexter and Debra both feel as if they have been drugged; just before he passes out, Dexter sees Hannah standing over him. When he later regains consciousness, Dexter begins investigating Hannah, and finds that she has changed her name and married Miles Foster (Julian Sands), a wealthy businessman. Dexter goes to see Hannah, who says that she had wanted him to kill Foster, but changed her mind after realizing she is still in love with Dexter. Foster warns him to stay away from Hannah, and has him beaten up. Dexter goes to Foster's boat to protect Hannah, but finds that she has already killed him. The two of them dispose of the body, and promise to watch out for each other. The two end up having sex and rekindle their relationship.
List of Dexter characters
Hannah and Dexter make plans to flee to Argentina but with the forces closing in on them, Dexter sends her and his son Harrison onto Jacksonville and from there they fly to Buenos Aires. She later reads of Dexter's boat sinking due to a hurricane and assumes Dexter had died. She becomes guardian of Harrison, practically adopting her "deceased" lover's (and killer accomplice) son.Isaak Sirko is a high-ranking member of the Koshka Brotherhood, a Ukrainian-based international crime syndicate with operations in Miami, and the main antagonist of Season 7. After the disappearance of Viktor Baskov, one of Isaak's top subordinates and his lover, Isaak travels to Miami, accompanied by his bodyguard and right-hand man, Jurg Yeliashkevych, in order to investigate Viktor's vanishing. Upon realizing that Viktor was killed, he sets out to avenge him. His trail leads him to Dexter's boat, the "Slice of Life", which Louis Greene was trying to sabotage. Louis tells Isaak that the boat belongs to Dexter Morgan, after which Isaak shoots him. Isaak begins to hunt Dexter, but Dexter becomes wise to it very quickly, and lures him into a bar owned by the Koshka Brotherhood's Colombian rivals, the Rojas Cartel. Three armed Colombians attack Isaak, but Isaak disposes of them. The evidence leads to Isaak being brought in by Miami Metro and later incarcerated.