Sci-fi as a genre is incredibly influential.

And to make it stand out in these epic tales, they need to have strong lead characters.

Fillion made Mal into a character who connected with audiences in almost no time at all.

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And now, more than 20 years after the show came off the air, he remains a legend.

Her innocence, strength, and ability to persevere make her a legend in sci-fi.

Mark S. is the Innie and counterpart to Mark Scout.

While-Waiting-For-Fallout-Season-2,-Get-Your-Ella-Purnell-Fix-By-Watching-These-3-TV-Shows-On-Streaming

And while the two share a body, they are largely independent characters.

Mark S. is essentially a few years old, and trapped in an office that fills his entire life.

But his real arc begins when Mark S. begins to rebel and proves that he is no pushover.

Din Djarin holding up a blaster to the left and standing in his armor to the right

Daisy started out in the show as almost a supporting character.

A hacker who was living out of a van and getting into trouble.

However, in the world of superheros and spies, Daisy came into her own, becoming both herself.

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Custom image by Yeider Chacon

Before long, Daisy was leading teams of other spies and heroes, and defining her purpose.

The result was that she became one of the most iconic and inspiring figures in sci-fi.

But when Billy Butcher approaches him to join his team, things quickly start to change.

Patrick Stewart as Captain Jean-Luc Picard looking curious in Star Trek: The Next Generation

Custom Image by Molly Brizzell

Jack Quaid delivers a spectacular performancethroughout, and the character growth is extraordinary throughout.

She holds her own, she discovers hard truths, and she is intent on making real changes.

For all of these reasons and more, Lucy MacLean stands out as an incredible sci-fi hero.

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The Doctor is also distinctly different.

He is no human, and there are choices he makes that further define his alien nature.

2The Mandalorian

The Mandalorian

Star Warsis a huge sci-fi franchise that began in 1977.

Nathan Fillion as Mal Reynolds in Firefly season 1 episode 1

Eleven is looking distressed while looking at the mirror in Stranger Things

Stranger Things season 3 Starcourt Mall crew

Mark is shocked to see Drummond in Severance season 2 finale

Daisy Johnson using her Inhuman powers in Agents of SHIELD

Jack Quaid covered in blood as Hughie in The Boys season 4

Ella Purnell looking worried as Lucy in Fallout season 1

David Tennant’s Tenth Doctor looking confused in Doctor Who

Din Djarin stands on Nevarro in The Mandalorian season 3, edited over Coruscant in The Mandalorian season 3.

Custom Image by Molly Brizzell

Peter in Heroes