12 Must-See Sci-Fi Television Series

7 min read Post on May 17, 2025

Classic Sci-Fi Series That Defined the Genre

These sci-fi TV series laid the groundwork for much of what we see on screen today. They are essential viewing for any serious fan of the genre.

Star Trek (various series):

A cornerstone of science fiction, Star Trek (spanning various series like The Original Series, The Next Generation, Deep Space Nine, Voyager, and more) explores themes of exploration, diplomacy, and the human spirit. Its enduring legacy is a testament to its impact.

Focuses on diverse crews: Long before diversity was commonplace on television, Star Trek featured diverse casts, tackling social issues with nuance and foresight.
Groundbreaking social commentary: The series tackled complex themes of racism, sexism, war, and environmentalism, pushing boundaries and sparking important conversations.
Lasting cultural impact: Star Trek has had a profound impact on popular culture, influencing everything from technology to language.
Available on various streaming platforms: You can easily find Star Trek series on platforms like Paramount+, Netflix, and Amazon Prime, making it easily accessible. Finding the best Star Trek show for you depends on your preferred era and style.

Battlestar Galactica (2004):

This reimagining of the classic series offers intense action and complex moral dilemmas, making it one of the best sci-fi shows of the 21st century.

Modern take on a classic: The 2004 Battlestar Galactica reboot revitalized the franchise, introducing a darker, more nuanced take on the original story.
Explores themes of survival and faith: The series explores the struggle for survival against a relentless enemy, forcing characters to confront their beliefs and morality.
Strong female characters: Battlestar Galactica features compelling and complex female characters, who are integral to the plot and its themes.
Critically acclaimed: The series received widespread critical acclaim for its writing, acting, and overall production value. Find Battlestar Galactica streaming on various platforms.

Doctor Who:

A time-traveling adventure spanning decades, Doctor Who features iconic companions and unforgettable villains, making it one of the longest-running and most beloved sci-fi TV series.

Long-running series: With over 60 years of adventures, Doctor Who continues to captivate audiences with its ever-evolving storylines and characters.
Multiple Doctors: The titular Doctor, a time-traveling alien, regenerates into a new body, allowing for multiple actors to portray the role.
Diverse companions: The Doctor is always accompanied by companions, showcasing a wide range of personalities and backgrounds.
Family-friendly (with some exceptions): While some episodes delve into darker themes, Doctor Who generally maintains a family-friendly tone. It's easily accessible on streaming platforms. Search for "Doctor Who streaming" to find it.

Modern Sci-Fi Masterpieces Redefining the Genre

These modern sci-fi shows are pushing boundaries and setting new standards for the genre.

Westworld:

This HBO series is a complex exploration of artificial intelligence, consciousness, and the nature of reality, featuring a twisty plot and stellar cast.

Twisty plot: Westworld keeps viewers guessing with its unpredictable narrative and shocking reveals.
Stellar cast: The show boasts a talented cast, delivering strong performances that enhance the complexity of the story.
Explores philosophical themes: Westworld delves into deep philosophical questions about consciousness, free will, and the nature of humanity.
Visually stunning: The production design and special effects are top-notch, creating a visually captivating experience. Find Westworld streaming on HBO Max.

The Expanse:

This space opera features realistic depictions of space travel and political intrigue, making it a standout in hard sci-fi television.

Hard sci-fi elements: The Expanse strives for scientific accuracy in its depiction of space travel and technology.
Intricate storyline: The series features a complex and interwoven storyline that keeps viewers engaged.
Strong characters: The characters are well-developed and relatable, making their journeys all the more compelling.
Available on Amazon Prime: The Expanse is readily available for streaming on Amazon Prime Video.

Stranger Things:

A blend of sci-fi and horror, Stranger Things captures the 80s aesthetic and delivers a thrilling mystery, making it a Netflix phenomenon.

Nostalgic setting: The 80s setting adds a layer of charm and nostalgia to the story.
Compelling characters: The characters are relatable and memorable, driving the narrative forward.
Supernatural elements: The series incorporates supernatural elements that create a thrilling and suspenseful atmosphere.
Netflix original series: Stranger Things is a flagship Netflix original series. Search for "Stranger Things Netflix" to find it.

Sci-Fi Shows Exploring Unique Concepts and Themes

This section focuses on sci-fi TV series that venture into less-trodden territory.

Black Mirror:

This anthology series explores the dark side of technology and its impact on society.

Each episode a standalone story: Each episode explores a different theme and features a unique cast.
Thought-provoking: Black Mirror offers a disturbingly realistic look at the potential dangers of unchecked technological advancement.
Explores social commentary: The series uses science fiction to explore contemporary social and political issues.
Netflix series: Black Mirror is available to stream on Netflix. Search for "Black Mirror Netflix" to find it.

The Orville:

A comedic space opera, The Orville balances humor with thoughtful exploration of social issues.

Seth MacFarlane created series: Created by Seth MacFarlane, known for Family Guy, The Orville blends humor and heartwarming moments.
Blend of comedy and drama: The series seamlessly blends comedic elements with serious explorations of social and political issues.
Strong ensemble cast: The cast delivers strong performances that make the characters engaging and relatable.
Hulu series: The Orville is available on Hulu.

Raised by Wolves:

This sci-fi drama features a unique premise and visually stunning landscapes.

HBO Max series: Raised by Wolves is a visually impressive series that utilizes stunning CGI and cinematography.
Explores themes of faith and family: The series delves into complex themes of faith, family, and the nature of humanity.
Visually captivating: The series is visually stunning, boasting impressive special effects and breathtaking landscapes. Find it streaming on HBO Max, searching for "Raised by Wolves HBO Max".

Anime Sci-Fi Series Worth Watching

These anime sci-fi series provide unique perspectives and compelling stories.

Attack on Titan:

A dark fantasy/sci-fi anime, Attack on Titan features thrilling action and complex characters.

Post-apocalyptic setting: The story takes place in a post-apocalyptic world where humanity is threatened by giant humanoid creatures.
Giant humanoid creatures: The Titans are terrifying and awe-inspiring, adding a sense of dread and urgency to the story.
Intense action: The series is packed with intense action sequences that keep viewers on the edge of their seats.
Critically acclaimed: Attack on Titan is critically acclaimed for its animation, story, and complex characters.

Cowboy Bebop:

A space western anime, Cowboy Bebop features a unique blend of action, humor, and drama.

Iconic soundtrack: The series features an iconic soundtrack that has become a fan favorite.
Memorable characters: The characters are memorable and relatable, with complex backstories that add depth to the story.
Neo-noir aesthetic: The series has a distinctive neo-noir aesthetic that sets it apart from other anime.
Available on Netflix: You can find Cowboy Bebop streaming on Netflix. Search for "Cowboy Bebop Netflix" to find it.

Conclusion

This list of 12 must-see sci-fi television series offers a diverse range of storylines, characters, and thematic explorations. From classic adventures to modern masterpieces and captivating anime, there's something to spark your imagination and fuel your sci-fi obsession. So, grab your remote, settle in, and prepare for an unforgettable journey through the cosmos! Start exploring these amazing sci-fi TV series today and discover your new favorite show!