NCIS Sydney Cast Revealed: 6 Stars Leading The Global Franchise's Bolder Season 2 (2025)

The global phenomenon of the NCIS franchise has sailed into new territory with NCIS: Sydney, the first international iteration of the beloved military police procedural. As of today, December 10, 2025, the buzz is palpable for the show’s return, which is set to be bigger and bolder than ever before. This Australian spin-off has captured audiences worldwide by blending the familiar high-stakes drama of the Naval Criminal Investigative Service (NCIS) with the unique flavor and expertise of the Australian Federal Police (AFP), all set against the stunning backdrop of Sydney Harbour.

The success of the series hinges on its brilliant and eclectic ensemble cast, a multinational task force of agents and specialists who must navigate jurisdictional clashes while solving complex crimes involving U.S. Navy and Marine personnel. With Season 2 confirmed and a premiere date set for early 2025, fans are eager to know more about the talented actors bringing these compelling characters to life. Here is the complete breakdown of the main cast, their detailed biographies, and the vital roles they play in the Sydney-based team.

The Main Cast of NCIS: Sydney: Detailed Biographies and Key Roles

The core team is a dynamic mix of American NCIS agents and Australian Federal Police (AFP) officers. This unique collaboration forms the central tension and strength of the series, demanding a cast capable of delivering both intense action and nuanced character drama. The following six stars lead the charge in this groundbreaking show.

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Olivia Swann as NCIS Supervisory Special Agent Michelle Mackey

• Role in NCIS: Sydney: The American Special Agent-in-Charge, Michelle Mackey, is a sharp, driven, and often abrasive leader. Her no-nonsense style frequently clashes with the more laid-back Australian approach of her partner, JD Dempsey.
• Biography & Career Highlights: Born on September 19, 1992, in England, Olivia Swann rose to prominence for her role as Astra Logue in the CW superhero series DC's Legends of Tomorrow. Her transition to leading the first international NCIS team marks a significant step in her career, showcasing her versatility in a procedural drama.

Todd Lasance as AFP Liaison Officer Sergeant Jim "JD" Dempsey

• Role in NCIS: Sydney: JD Dempsey is the AFP Second-in-Command and the primary Australian liaison for the joint task force. He is a grounded, experienced officer who provides the local knowledge and a calming counterpoint to Mackey’s intensity, creating a compelling on-screen partnership.
• Biography & Career Highlights: Todd James Lasance, born February 18, 1985, is an acclaimed Australian actor from Newcastle. He is best known for his long-running role as Aden Jefferies on the iconic Australian soap opera Home and Away, for which he won a Logie Award. International audiences also recognize him from his role as Julius Caesar in the series Spartacus: War of the Damned and Julian on The Vampire Diaries.

Sean Sagar as NCIS Special Agent DeShawn Jackson

• Role in NCIS: Sydney: DeShawn Jackson is a highly capable and charismatic NCIS Special Agent. He serves as the second American agent on the team, often acting as a buffer between the strong personalities of Mackey and Dempsey.
• Biography & Career Highlights: Born on February 20, 1990, Sean Sagar is a British actor of Jamaican and Guyanese descent. Before joining the NCIS franchise, he was known for his roles in the British television series Our Girl and the acclaimed 2019 film Blue Story.

Tuuli Narkle as AFP Liaison Officer Constable Evie Cooper

• Role in NCIS: Sydney: Evie Cooper is the dedicated and resourceful AFP Liaison Officer. Her character is crucial for bridging cultural and procedural gaps between the US and Australian agencies.
• Biography & Career Highlights: Tuuli Narkle is a proud Yued and Wiilman Noongar woman from Western Australia. She is one of Australia’s most celebrated rising stars, having won the prestigious 2022 AACTA Award for Best Lead Actress in a Television Drama for her compelling performance in Mystery Road: Origin.

Mavournee Hazel as NCIS Forensic Scientist Bluebird "Blue" Gleeson

• Role in NCIS: Sydney: Blue is the team’s brilliant and eccentric forensic scientist. Her technical expertise and unique perspective are invaluable to solving the complex cases the team tackles.
• Biography & Career Highlights: Mavournee Hazel, born March 20, 1996, is an Australian actress and model. She gained widespread recognition for playing Piper Willis in the long-running soap opera Neighbours. Her transition to the role of a forensic specialist showcases a different facet of her acting talent.

William McInnes as NCIS Forensic Pathologist Dr. Roy Penrose

• Role in NCIS: Sydney: Dr. Penrose is the seasoned and often wry NCIS Forensic Pathologist. As a respected Australian figure, his expertise in the morgue provides critical evidence and a touch of dark humor to the investigative process.
• Biography & Career Highlights: Darrell William McInnes, born September 10, 1963, is one of the most accomplished and popular actors and writers in Australia. His extensive career includes iconic roles in Blue Heelers and SeaChange, and he is a multi-award winner, including four Logie Awards and the Film Critics Circle of Australia Award for Best Actor.

The High-Stakes NCIS/AFP Collaboration: Why Sydney is the Most Relevant Spin-Off

What makes NCIS: Sydney stand out in a franchise with multiple successful spin-offs (NCIS: Los Angeles, NCIS: New Orleans, NCIS: Hawaiʻi) is its unprecedented international setting and its core premise: the forced collaboration between two distinct law enforcement bodies. The series is the first NCIS spin-off produced outside of the United States, which immediately gives it a fresh perspective and a unique sense of place.

The show's central dynamic revolves around the jurisdictional tug-of-war between the American Naval Criminal Investigative Service (NCIS), which has authority over crimes involving the U.S. Navy and Marine Corps, and the Australian Federal Police (AFP), which maintains sovereignty over Australian soil. This conflict is not just procedural; it’s cultural. Agent Mackey’s American directness clashes with Sergeant Dempsey’s Australian pragmatism, creating a compelling "odd couple" dynamic that drives both the humor and the drama of the show.

This collaboration is highly relevant in today's global landscape, reflecting the real-world complexities of international security and allied military operations. The task force must learn to trust each other's methods and overcome national differences to solve cases that often have geopolitical implications, from naval terrorism to maritime drug trafficking.

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Fresh Updates: What to Expect from NCIS: Sydney Season 2 in 2025

The news is official: NCIS: Sydney has been renewed for a second season, and the premiere date is fast approaching, making this one of the most anticipated shows of the new year. The team is already hard at work, with reports indicating that filming for Season 3 has also begun in Sydney, showcasing the network's confidence in the international series.

Season 2 Premiere Date and Plot Teaser

• Premiere Date: NCIS: Sydney Season 2 is set to premiere on January 31, 2025, on CBS in the U.S., with episodes available to stream on Paramount+ the following day.
• Plot Details: While full plot details are under wraps, the new season promises to deliver even higher stakes and more dramatic cases. One early teaser hints at the team investigating the mysterious death of a US Navy petty officer whose frozen body is discovered near a Sydney beach. This suggests a continuation of the show's signature blend of military, naval, and local criminal investigations.
• Character Development: Fans can look forward to deeper dives into the personal lives and backstories of the main cast. The relationship between Mackey and Dempsey, in particular, is expected to evolve as they continue to forge a cohesive working partnership despite their differences.

The Iconic Sydney Filming Locations

The city of Sydney itself acts as a vibrant character in the series, a key element that distinguishes it from its American counterparts. The production utilizes a range of spectacular and authentic Australian locations, enhancing the show’s topical authority.

• Headquarters: The NCIS Sydney headquarters is depicted as being located at the picturesque Walsh Bay Arts Precinct, right on the iconic Sydney Harbour. This central location emphasizes the maritime focus of their investigations.
• Key Spots: Other notable filming locations that showcase the beauty of New South Wales include the Garden Island Navy Base, the famous Bondi Beach, and Maroubra. The use of these real-world settings grounds the series in a truly Australian environment, providing a stunning visual contrast to the often dark and intense nature of the crimes they investigate.

The combination of a stellar, well-rounded cast, the unique NCIS-AFP collaboration, and the breathtaking Australian setting ensures that NCIS: Sydney will continue its reign as a must-watch global drama as it heads into its highly anticipated second season in 2025.

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