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Natalie Cousteau (also known professionally as Natalie Whitelock)1 is a British actress from Surrey, England,2 represented by Nic Knight Management.3 She has worked in film and television across the United Kingdom and internationally, with her profile rising considerably in the mid-2020s following a notable role in Ghostbusters: Frozen Empire (2024) and appearances in major productions including MobLand (2025) and 28 Years Later: The Bone Temple (2026).
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Cousteau has built a screen career across film and television in the United Kingdom. Her earlier credits include the BBC medical drama Casualty, the short drama Now and Then (2023), in which she played Aisha, and the British comedy film Sumotherhood (2023). She also appeared in the short film Deep Fake Love (2023) as a Reporter.2
Her profile grew significantly through a succession of high-profile projects in 2024 to 2026. In the Paramount+ crime drama MobLand (2025), a series led by Tom Hardy, Pierce Brosnan, and Helen Mirren, Cousteau played the Home Secretary in the episode "Beggars Banquet."4 She followed that with a supporting role in 28 Years Later: The Bone Temple (2026), the second film in Nia DaCosta's continuation of Danny Boyle's 28 Days Later franchise, where she plays Natalie Williams, a Ticket Inspector.5 She also appeared as Ms. Madeline in the film Well Being (2026).2
In Ghostbusters: Frozen Empire (2024), Cousteau portrayed Dadi, the last living descendant of the Fire Masters, an ancient band of roving spirit catchers who had battled paranormal threats across millennia.6 The character appears primarily in a flashback sequence set in mid-July 1904: Dadi, wearing her Fire Master armor, infiltrated the Manhattan Adventurers Society in New York City to reseal the powerful entity Garraka inside the Orb of Garraka after Garraka was accidentally freed during a gathering there.6
Dadi survived the confrontation and, through means the film leaves unexplained, lived well beyond 120 years, eventually settling in an apartment in Queens. There she kept the Orb concealed in a brass-lined secret room behind her pantry. The brass was regarded by the Fire Masters as a magical alloy capable of blocking Garraka's ability to reach out to other ghosts.6 Dadi was the last guardian against Garraka's escape, but she died in 2024 before the film's present-day events begin. Her grandson Nadeem Razmaadi unknowingly sold the Orb to Ray Stantz, setting the film's central conflict in motion.6
Hook and Ladder Company 8, which responded to the Society in 1904, also appears in the same flashback sequence; their firefighters are played by other cast members including Samuel Greco.6
Some content on this page was researched using the Ghostbusters Wiki on Fandom.
The professional name "Natalie Whitelock" appears in some filmography database listings; no primary source confirming this alternate name was located at the time of writing. ↩
"Natalie Cousteau," IMDb, accessed 2026-06-13, https://www.imdb.com/name/nm1490219/ ↩ ↩2 ↩3
Nic Knight Management, "Natalie Cousteau in Ghostbusters: Frozen Empire" (March 22, 2024), https://nicknightmanagement.com/natalie-cousteau-in-ghostbusters-frozen-empire/ ↩
"MobLand: Beggars Banquet (Season 1, Episode 9)," IMDb, accessed 2026-06-13, https://www.imdb.com/title/tt32125933/ ↩
"28 Years Later: The Bone Temple (2026) -- Natalie Cousteau as Natalie Williams," IMDb, accessed 2026-06-13, https://www.imdb.com/title/tt32141377/characters/nm1490219/ ↩
Ghostbusters: Frozen Empire (2024). Directed by Gil Kenan. Screenplay by Gil Kenan and Jason Reitman. Sony Pictures Releasing / Ghost Corps. ↩ ↩2 ↩3 ↩4 ↩5