Here’s a list of the most captivating sci-fi shows and series of all time, carefully curated by hundreds of passionate fans. It features both enduring classics like Doctor Who and unforgettable gems that were sadly cut short. Science fiction TV has mesmerized audiences for decades, with some of the longest-running shows falling into this extraordinary genre. Beloved franchises such as Star Trek have spawned multiple versions, while adored favorites like Firefly and The X-Files have successfully made the leap from the small screen to the silver one.
Thanks to pioneering networks like SyFy, FX, and The CW, each year brings forth a fresh wave of exhilarating sci-fi shows. Outstanding series like The Expanse, Orphan Black, and The 100 are constantly attracting new viewers, building devoted communities. Netflix has also left an indelible mark on the genre with their original series Stranger Things, which has garnered exceptional acclaim.
1. Firefly
Come and check out this popular space western that everyone’s talking about! It’s got this awesome crew of misfits who find themselves in all sorts of crazy situations out in the vastness of the galaxy. They’re constantly facing unexpected dangers and fighting for their lives. Sure, they may be on the run from some pretty powerful forces, but you know what? Sometimes, the biggest adventure is finding a place where you truly belong.
Premiered: September 20, 2002
Actors: Nathan Fillion, Gina Torres, Alan Tudyk
2. The Expanse
Get ready to embark on an exhilarating journey with an unexpected group of heroes. They’ll be navigating a world filled with political intrigue and mind-blowing technological advancements. As you delve deeper into their story, you’ll witness humanity’s relentless struggle to reclaim the stars. But be prepared, because along the way, they’ll stumble upon dark secrets that have the potential to shatter the delicate balance of power.
Premiered: December 14, 2015
Actors: Thomas Jane, Steven Strait, Cas Anvar
3. Ahsoka
Premiered: August 22, 2023
Actors: Rosario Dawson, Natasha Liu Bordizzo, Mary Elizabeth Winstead
4. Star Trek: The Next Generation
Join the crew of the USS Enterprise-D for an epic galactic adventure! Together, they’ll venture into uncharted territories, meet fascinating extraterrestrial beings, and grapple with complex moral issues. This series has truly set the bar for intelligent and mind-stimulating science fiction narratives, thanks to its legendary captain and mind-blowing futuristic technology. Get ready to be captivated and inspired!
Premiered: September 28, 1987
Actors: Patrick Stewart, Jonathan Frakes, LeVar Burton
5. Stargate SG-1
Step into a thrilling adventure as you journey through ancient portals, venturing into far-off worlds alongside a remarkable team of military and scientific experts. Together, they delve into the mysteries of an advanced alien civilization, unraveling its secrets and uncovering incredible wonders. This captivating series effortlessly combines elements of science fiction, mythology, and military drama to craft a compelling narrative that will keep you hooked from start to finish. Prepare yourself for heart-pounding action sequences and a cast of unforgettable characters that will leave a lasting impression.
Premiered: July 27, 1997
Actors: Amanda Tapping, Michael Shanks, Christopher Judge
6. Battlestar Galactica
Get ready for a thrilling and emotional adventure in this epic story. The survivors of a human civilization that has been destroyed are on the run from their relentless enemies, the Cylons. With incredibly well-crafted writing, intricate characters, and a fast-paced plot, this tale explores themes of hope, betrayal, and redemption. It follows the last remnants of humanity as they search for a legendary lost colony known as Earth.
Premiered: January 14, 2005
Actors: Edward James Olmos, Mary McDonnell, Katee Sackhoff
7. The Mandalorian
Join the epic adventure of a tough bounty hunter and his incredibly cute and powerful sidekick in the vast Star Wars universe. Explore a galaxy that is in complete turmoil due to ongoing conflicts. This captivating series captures the essence of adventure that made the original movies so beloved by fans all around the globe.
Premiered: November 12, 2019
Actors: Pedro Pascal, Carl Weathers, Giancarlo Esposito
8. The X-Files
Get ready to dive into the world of paranormal mysteries and government conspiracies! Join a unique duo of FBI partners who hold completely different views on the unexplainable. This legendary series skillfully combines horror, drama, and humor to create a captivating story that still captivates fans to this day.
Premiered: September 10, 1993
Actors: Gillian Anderson, David Duchovny, Mitch Pileggi
9. Star Trek: The Original Series
Embark on exciting journeys alongside the trailblazing crew of the USS Enterprise. Together, they explore the vast expanse of the universe, crossing paths with intriguing extraterrestrial beings and encountering uncharted realms. But this series is more than just thrilling escapades; it holds a deeper meaning. It serves as an allegory, shedding light on the complexities of the human condition and our boundless capacity for achieving greatness.
Premiered: September 8, 1966
Actors: William Shatner, Leonard Nimoy, DeForest Kelley
10. Doctor Who
Join the incredible adventures of The Doctor, a time-traveling alien, as they traverse space and time alongside their human companions and their trusty TARDIS. Together, they take on the task of correcting injustices and confronting malevolent forces. This long-standing British series has made an unforgettable impact on the realm of science fiction and beyond, offering a blend of heartfelt narratives and thrilling escapades.
Premiered: March 26, 2005
Actors: Ncuti Gatwa, Jodie Whittaker, Mandip Gill
11. The Twilight Zone
Take a deep dive into the eerie and unsettling world of the original anthology series that completely revolutionized a whole genre. This show effortlessly mixes elements of science fiction, fantasy, and horror to uncover the deepest and darkest parts of the human experience. Its mesmerizing storytelling and spine-tingling surprises have not only left a lasting impact on modern television but have also haunted the minds of multiple generations.
Premiered: October 2, 1959
Actors: Rod Serling, Robert McCord, Jay Overholts
