| Actor | Character | Description | |-------|-----------|-------------| | | Jacob Anton Ness | Sara’s new husband, a seemingly mild-mannered economics professor. Major spoiler: He is the season’s true villain – “Poseidon,” a rogue CIA operative who framed Michael. | | Inbar Lavi | Sheba | A resourceful Yemeni activist and love interest to Lincoln. Helps navigate the war-torn city. | | Augustus Prew | David “Whip” Martin | A young, reckless inmate in Ogygia. Later revealed to be T-Bag’s son (conceived pre-series). | | Rick Yune | Ja | A Korean mercenary working for Poseidon; cold, efficient antagonist. | | Steve Mouzakis | Van Gogh | A flamboyant, dangerous Australian inmate; secondary antagonist in Ogygia. | | Marina Benedict | Emily “A&W” Blake | A ruthless, cancer-ridden CIA assassin working for Poseidon. |