A fellow inmate in Ogygia, Sid forms a close bond with Michael and helps him from inside the prison.

Purcell reprises his role as Michael's fiercely loyal older brother. After receiving a cryptic photo showing Michael alive, Lincoln abandons his quiet life to lead a new, dangerous rescue mission into war-torn Yemen.

The ever-loyal best friend to Michael, Sucre joins the rescue team without hesitation, providing both muscle and heartfelt support.

A sadistic and eccentric killer, Van Gogh serves as A&W’s partner, bringing a volatile and unpredictable menace to Poseidon’s operations.

The young son of Michael and Sara, whose existence becomes a powerful motivator for his father to finally escape his past for good.

Callies returns as Michael's wife and the mother of his son, Mike. Now remarried and having moved on, she is thrown back into the chaos when she learns Michael is alive, forcing her to confront her past and her lingering feelings.

A ruthless, cold-blooded assassin working for Poseidon. Alongside her partner Van Gogh, she relentlessly hunts Lincoln and the others.