Shows Like Citadel: Diana
If you loved Citadel: Diana's Action & Adventure and Drama storytelling, these series deliver a similar experience — chosen for tone, narrative quality, and viewer satisfaction. Each includes where to stream it now.
★ Top Picks
Citadel
What if you lost your memory? What if a spy didn’t know they were a spy? Years ago, the top agents of Citadel, Mason Kane and Nadia Sinh, had their minds wiped. But, they’re called back to action as sinister forces emerge from the past. With the help of spymaster Bernard Orlick, these former lovers must remember the past to save the future.
Motorvalley
Desperate to gain control of her family's racing empire, an heiress hires a reckless driver and a troubled coach to compete in the Italian Gran Turismo.
Dark Blue
Wandering in and out of he underbelly of Los Angeles, where criminals roam free under the veil of night or hide in the shadows of day, is routine for Lieutenant Carter Shaw and his special undercover task force. This team understands that to bring down a criminal, one must first get on their level.
The New Avengers
The New Avengers is a British secret agent fantasy adventure television series broadcast during 1976 and 1977. It is a sequel to the 1960s series The Avengers and was developed by Albert Fennell and Brian Clemens. A joint United Kingdom-France-Canada production, the show picks up the adventures of John Steed and his team of Avengers fighting evil plots and world domination. Whereas in the original series Steed had almost always been partnered with a woman, in the new series he had two partners: Mike Gambit, a top agent, crack marksman and trained martial artist, and Purdey, a former trainee with The Royal Ballet who was an amalgam of many of the best talents from Steed's previous female partners.
Covert Affairs
A young CIA operative, Annie Walker, is mysteriously summoned to headquarters for duty as a field operative. While Annie believes she's been promoted for her exceptional linguistic skills, there may be something or someone from her past that her CIA bosses are really after. Auggie Anderson is a CIA military intelligence agent who was blinded while on assignment and is Annie's guide in this world of bureaucracy, excitement and intrigue.
Inspector Montalbano
Inspector Montalbano is an Italian television series produced and broadcast by RAI since 1999, based on the detective novels of Andrea Camilleri. The protagonist is Commissario Salvo Montalbano, and the stories are set in the imaginary town of Vigata, Sicily. In 2012 the series generated a prequel, Il giovane Montalbano.
The Unit
A covert team of special forces operatives risk their lives on undercover missions around the globe, while their wives maintain the homefront, protecting their husbands' secrets.
Thou Shalt Not Kill
Valeria Ferro, an inspector of the Turin Homicide Squad, is a young and extremely skilled police officer, with a keen intuition and an obsession: the truth. But her past reveals a wound that dates back to her adolescence, when her mother, Lucia, was convicted of her husband's murder.
More Shows Like Citadel: Diana
Danger Man
Danger Man is a British television series which was broadcast between 1960 and 1962, and again between 1964 and 1968. The series featured Patrick McGoohan as secret agent John Drake. Ralph Smart created the programme and wrote many of the scripts. Danger Man was financed by Lew Grade's ITC Entertainment.
Black Doves
When a spy posing as a politician's wife learns her lover has been murdered, an old assassin friend joins her on a quest for truth — and vengeance.
Violet like the sea
Viola Vitale, Miss Italy and fashion journalist, returns to Sicily to look for her father. She starts working for a digital news company and joins police inspector Francesco Demir in solving crime with the help of synesthesia.
Spooks
Tense drama series about the different challenges faced by the British Security Service as they work against the clock to safeguard the nation. The title is a popular colloquialism for spies, and the series follows the work of a group of MI5 officers based at the service's Thames House headquarters, in a highly secure suite of offices known as The Grid.
Kung Fu
A quarter-life crisis causes a young Chinese-American woman to drop out of college and go on a life-changing journey to an isolated monastery in China. But when she returns to find her hometown overrun with crime and corruption, she uses her martial arts skills and Shaolin values to protect her community and bring criminals to justice…all while searching for the assassin who killed her Shaolin mentor and is now targeting her.
The Night Manager
Former British soldier Jonathan Pine navigates the shadowy recesses of Whitehall and Washington where an unholy alliance operates between the intelligence community and the secret arms trade. To infiltrate the inner circle of lethal arms dealer Richard Onslow Roper, Pine must himself become a criminal.
El final del paraíso
In this new era, Catalina, now head of the DEA in Colombia, has a new challenge: to track down a criminal organization that is trafficking a new synthetic drug. What she ignores is that her daughter is part of the Cartel that traffics them and that Yésica, her worst enemy, is infiltrated in the DEA.
Alex Rider
Alex Rider is an ordinary teenager enlisted to work on behalf of MI6, where he uses skills he didn't know he had to become an extraordinary spy.
The Sweeney
Jack Regan, an unethical officer of the Flying Squad, uses unorthodox methods to pursue criminals with the help of his partner, George Carter.
The Old Man
Dan Chase absconded from the CIA decades ago and now lives off the grid. When an assassin arrives and tries to take Chase out, the old operative learns that to ensure his future he now must reconcile his past.
Gangs of London
When the head of a criminal organisation, Finn Wallace is assassinated, the sudden power vacuum his death creates threatens the fragile peace between the intricate web of gangs operating on the streets of the city. Now it’s up to the grieving, volatile and impulsive Sean Wallace to restore control and find those responsible for killing his father.
Splinter Cell: Deathwatch
In the shadowy world of espionage, Sam Fisher is a rumor and a legend. Pulled back into action, he must help a new recruit unravel a global conspiracy.
Why These Shows Are Similar
These recommendations share core qualities with Citadel: Diana (2024): Action & Adventure and Drama themes, similar pacing, and comparable production quality. NoBadPicks uses TMDB collaborative filtering, genre matching, and AI analysis to surface series most likely to resonate with fans of Citadel: Diana.
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