The NCIS: Sydney Cast: Where Are The Stars Now And What’s The Shocking Future Of Season 3?

The global NCIS franchise has found a massive hit Down Under, and as of December 2025, the buzz surrounding the cast of NCIS: Sydney is louder than ever as fans anticipate the next chapter. This Australian-American co-production successfully blended the procedural drama's familiar formula with the unique backdrop of Sydney Harbour, introducing a formidable joint task force team that has captured audiences worldwide. The show's success hinges on the compelling chemistry and unique backgrounds of its core actors, many of whom are seasoned stars from both the UK and Australia.

The latest updates confirm the show's continuation, promising a deeper dive into the characters’ personal lives and the high-stakes world of Naval criminal investigations in the Southern Hemisphere. Prepare to revisit the full main cast, explore their impressive biographies, and get the freshest details on the dramatic twists coming in the highly anticipated third season.

The NCIS: Sydney Main Cast: Full Biography and Character Profiles

The success of the NCIS: Sydney cast lies in the dynamic mix of British and Australian talent, mirroring the international nature of the NCIS-AFP joint task force. Here is a complete profile of the main actors who bring the Sydney-based crime-fighting team to life.

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• Olivia Swann as NCIS Supervisory Special Agent Michelle Mackey
• Nationality: English
• Born: September 19, 1992
• Notable Roles: Swann is best known to fans of the DC Universe as Astra Logue in the CW's science fiction series DC's Legends of Tomorrow. Her role as the lead NCIS agent, Michelle Mackey, sees her as the professional and by-the-book leader, often clashing with her AFP counterpart.
• Todd Lasance as AFP Sergeant Jim "JD" Dempsey
• Nationality: Australian
• Born: February 18, 1985
• Notable Roles: An Australian television veteran, Lasance gained fame as Aden Jefferies on the long-running soap opera Home and Away. Internationally, he is recognized for playing Julian on The Vampire Diaries and Julius Caesar on Spartacus: War of the Damned. JD Dempsey is the rugged, pragmatic Aussie counterpoint to Mackey's formal style.
• Sean Sagar as NCIS Special Agent DeShawn Jackson
• Nationality: British
• Born: February 20, 1990
• Notable Roles: Sagar is an English actor and model, widely known for his role as Private Jaiden 'Monk' Montgomery in the BBC One series Our Girl and for his work in the film Blue Story. As Jackson, he brings technical expertise and a grounding energy to the team.
• Tuuli Narkle as AFP Constable Evie Cooper
• Nationality: Australian
• Notable Roles: Narkle is an acclaimed Australian actress who won the 2022 AACTA Award for Best Lead Actress in a Television Drama for her compelling performance in Mystery Road: Origin. Her character, Evie Cooper, serves as the vital AFP Liaison Officer, providing local knowledge and operational support.
• Mavournee Hazel as AFP Forensic Scientist Blue Gleeson
• Nationality: Australian
• Born: March 20, 1996
• Notable Roles: Hazel is widely known for her breakout role as Piper Willis on the popular Australian soap opera Neighbours. As "Blue," she is the team's brilliant, if slightly quirky, forensic scientist, whose fate was left hanging dramatically at the end of Season 2.
• William McInnes as NCIS Forensic Pathologist Dr. Roy Penrose
• Nationality: Australian
• Born: September 10, 1963
• Notable Roles: A highly decorated Australian actor and writer, McInnes is a household name in Australia, famous for roles like Nick Schultz on Blue Heelers and Max Connors on SeaChange, winning multiple Logie Awards. Dr. Penrose is the team's seasoned and often sardonic medical examiner.

The Electric Dynamic: Will Mackey and JD Ever Cross the Line?

One of the most compelling and frequently discussed elements of NCIS: Sydney is the "push-pull" dynamic between the two leads, NCIS Special Agent Michelle Mackey and AFP Sergeant Jim "JD" Dempsey. Their relationship, which began with professional friction, has steadily evolved into one of deep trust and mutual respect, leading many fans to actively "ship" the pair.

The inherent tension stems from their different professional cultures: Mackey represents the strict hierarchy and protocol of the US Naval Criminal Investigative Service, while JD embodies the more pragmatic, laid-back, yet intensely dedicated style of the Australian Federal Police. This cultural clash is a core theme of the show, but it is their growing personal bond that truly captivates the audience.

For Season 3, the cast and showrunners have hinted that the dynamic will deepen even further, potentially "breaking a bit" from the strictly professional boundaries established in previous seasons. While both characters prioritize the team and the mission, the emotional connection between them is undeniable, and the new season is expected to explore the personal fallout of their intense working relationship. Fans are eagerly waiting to see if the "will they/won’t they" tension finally pays off, or if their professional duties will continue to keep them apart.

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Fresh Updates for Season 3: Plot Twists, New Locations, and Blue’s Shocking Fate

The latest news surrounding NCIS: Sydney confirms that Season 3 is set to be the most dramatic yet, picking up directly after the explosive events of the Season 2 finale. The show continues to leverage the stunning and diverse Australian landscape, with filming locations that add a fresh, cinematic feel to the long-running NCIS franchise.

The Bluebird Mystery and a Major Exit

The biggest cliffhanger from the end of Season 2 involved AFP Forensic Scientist Blue Gleeson. The finale saw her discover a mysterious woman from her past in her apartment, leading to a massive personal crisis. Showrunner Morgan O’Neill has teased that this "Bluebird" mystery is a central thread for the next season, tying into Blue’s personal history and potentially the larger operations of the AFP.

Furthermore, early Season 3 plot details reveal a shocking development: Mavournee Hazel’s character, Blue Gleeson, has resigned following a traumatic incident in Darwin. The team will be recovering from a case in the Northern Territory, but the absence of their brilliant forensic scientist will force them to adapt, creating a significant void and a compelling narrative for her eventual return or replacement. This major shake-up promises a dramatic start to the new season.

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Expanded Australian Filming Locations

Unlike its US counterparts, NCIS: Sydney has always felt like a travelogue of Australia's most iconic and remote locations. The show’s main headquarters is authentically shot at the Walsh Bay Arts Precinct on the Sydney Harbour, providing a sleek, metropolitan base for the team.

However, the show’s commitment to topical authority and Australian issues takes the team far beyond the city. Recent seasons have included two-part episodes filmed on location in and around Darwin, the capital of the Northern Territory. This expansion allows the series to explore complex, real-world issues relevant to the region, such as indigenous rights and immigration issues, adding significant depth to the procedural format.

The NCIS Franchise Legacy

NCIS: Sydney has proven its place as a successful international spin-off, following in the footsteps of hits like NCIS: Los Angeles and NCIS: New Orleans, and currently airing alongside NCIS: Hawai’i. Its unique blend of US NCIS agents and Australian Federal Police officers not only distinguishes it from the rest of the NCIS franchise but also allows for a rich exploration of cross-cultural law enforcement. The confirmation of a third season solidifies its status as a permanent fixture in the global NCIS television universe, continuing the legacy that began with JAG and the original NCIS series.

With a talented core cast, a deepening central relationship, and a commitment to high-stakes, location-based storytelling, NCIS: Sydney Season 3 is set to be a must-watch event, promising to resolve the lingering mysteries and further develop the complex dynamics of the NCIS-AFP joint task force.