The X-Files

Spotnitz served on The X-Files for eight of its nine seasons after joining the show in 1994. He called it "a life-changing experience", graduating from staff writer to executive producer after three seasons.^[9] He directed two episodes and wrote or co-wrote more than 40 instalments of the series, including the Emmy-nominated "Memento Mori" with Chris Carter, Vince Gilligan and John Shiban in 1997. He served for four years as executive producer and three years as president of Carter's Ten Thirteen Productions. He was a producer and co-writer of both The X-Files feature films, Fight the Future (1998) and I Want to Believe (2008). Spotnitz shares three Golden Globes for Best Dramatic Series and a Peabody Award for his work on The X-Files. He was also nominated for an Emmy Award for writing and three times for Outstanding Drama Series.

Hunted

In 2012, Spotnitz created, wrote and executive-produced the international spy drama series Hunted for BBC1 and HBO/Cinemax, starring Melissa George, Adam Rayner, Stephen Dillane and Patrick Malahide.^[10] The series follows Sam Hunter, an operative for a private spy agency, Byzantium. After she is betrayed and nearly killed by one of her colleagues, Sam returns to London in an attempt to root out the traitor, while working undercover in the home of a wealthy and dangerous London gangster on an assignment that could cost her life. The series was BAFTA nominated for cinematography and won the ASC Award. It was also nominated for Best Editing by the Royal Television Society.

The Man in the High Castle

Spotnitz created, executive-produced and wrote several episodes of The Man in the High Castle,^[11] based on the classic alternative history novel by Philip K. Dick, which upon its release became Amazon's most viewed series ever.^[12] Starring Alexa Davalos, Rufus Sewell and Joel de la Fuente, the series explores life in a 1962 America where the Allies lost the war and the country is divided between the fascist Japanese in the West and the Nazis in the East.^[13] The series won two Emmy Awards, was nominated for two others, and named Best Drama Series at the Roma Fiction Festival. It was also nominated for an ASC Award for Outstanding Cinematography, the USC Scripter Award and Best Drama at Monte Carlo Television Festival's Golden Nymph Awards.^[14]

Medici

Spotnitz co-created, executive-produced and co-wrote Medici: Masters of Florence, starring Richard Madden, Dustin Hoffman and Annabel Scholey.^[15] Chronicling the rise of the Medici family during the Italian Renaissance, it shows how the family's ascent from simple merchants to power brokers sparked an economic and cultural revolution, creating powerful enemies in the process.^[16] The Netflix Original Series was produced with Lux Vide Productions for RAI, Italy's largest broadcaster, and SFR in France.^[17] The RAI premiere attracted a record-breaking seven million viewers in Italy, becoming the country's most-watched new series.^[18][19]

Set 20 years later, Medici: The Magnificent starred Daniel Sharman, Bradley James and Sean Bean, and was also co-created, executive-produced and co-written by Spotnitz.^[20] After an attempt on Piero de Medici's life, his son Lorenzo is forced to assume leadership of the family-run bank. Once in power, young Lorenzo resolves to abandon the cynical politics of the past to usher in a new era of creative and political revolution, bringing him into open conflict with rival banker Jacopo Pazzi, who will stop at nothing to defeat him. Their clash gives rise to one of the most thrilling true-life political intrigues of all time, the infamous Pazzi conspiracy.^[21] The second season of Medici: The Magnificent was broadcast on RAI in December 2019 and premieres as a Netflix Original Series in May 2020.

The Indian Detective

In 2017, Spotnitz co-created, executive-produced and co-wrote the comedy-drama series The Indian Detective for Canadian broadcaster CTV and Netflix. It starred international comedy sensation Russell Peters, whom Forbes magazine ranked three times in its Top 10 highest-grossing comics list. Peters portrays Doug D’Mello, a charming, smart Toronto cop, who unexpectedly finds himself investigating murder in his parents’ Indian homeland, where, despite his heritage, he remains an outsider. Canada's biggest series debut in two years was the second-most watched programme on the day of its CTV premiere, with 1.6 million viewers. It was bestowed the Golden Screen Award by the Canadian Screen Academy.

Ransom

Ransom, produced for CBS in the US, France's TF1, Canada's Corus/Global and RTL in Germany,^[22] was a suspense drama set against an international backdrop. It starred Luke Roberts and was co-created, executive-produced and co-written by Spotnitz.^[23] The thriller follows crisis and hostage negotiator Eric Beaumont, whose team is brought in to save lives when no one else can. Beaumont understands criminals better than they understand themselves and uses his insight into human behaviour to resolve the most difficult kidnap and ransom cases. Despite the stakes, Beaumont refuses to resort to violence, even when confronted by some of the world's most dangerous criminals. Ransom was VOX Germany's highest rated drama premiere for over 15 months and France's TF1 premiere reached over 4 million viewers for a market share of 25%.^[24] The show ran for three seasons.^[25]

Leonardo

Spotnitz co-created, executive-produced and co-wrote Leonardo, which was one of the first productions to complete filming during the COVID-19 pandemic in Italy.^[26][27] The series was released in early 2021 in RAI for Italy, Amazon Prime for the United Kingdom and Ireland,^[28] as well as Sony LIV in India, and PikTV in Canada. The eight-part limited series shows the terrible personal sacrifice that led Leonardo to create masterpieces that changed the way we see the world forever.^[29] Starring Aidan Turner and Freddie Highmore, the series is the first produced by The Alliance (RAI, France Télévisions, ZDF and RTVE).^[30]