Top 10 Best Actors and Actresses in a Sci-fi TV Show

1. Jared Padalecki - Supernatural

   

   Jared Tristan Padalecki is an American actor. He is best known for playing Sam Winchester in the CW series Supernatural. He grew up in Texas and rose to fame in the early 2000s with roles in Gilmore Girls, New York Minute, and House of Wax.

   I'd like to see Jared get the recognition he deserves. Walker is going to grow his fan base so much that he's going to reach another level of stardom. I hope he'll still be able to be out in his hometown without getting chased by his fans.

   Jared is special, and I hope the network realizes just how extraordinary he is. If he gets film offers, I really hope the network will work with the film studios to allow time for Jared to pursue outside projects.

   I don't think aging will affect his popularity at all, and someday I hope to see him get nominated for an Academy Award.

   His acting skills are really impressive! Because of this, I am watching Supernatural, going through Seasons 1-15 for the fifth time now.

   As an unbiased observer, I see that Jared is the best actor of all. I see his dedication to his character, Sam. He has made several breakthrough performances throughout the epic Supernatural storyline. His performance in Prophet and Loss is the best of all breakthrough performances, simply because I have learned the backstory of that performance. As a very underappreciated and undervalued actor, he simply deserves real recognition.

2. Jensen Ackles - Supernatural

   

   Jensen Ross Ackles is an American actor and director. He is best known for his role as Dean Winchester on the CW fantasy series Supernatural. Ackles also gained recognition for his roles as Eric Brady on Days of Our Lives, Alec/X5-494 on Dark Angel, and Jason Teague on Smallville, earning multiple Daytime... read more

   Right where he belongs! On top!

   Jensen is a great actor, but unfortunately, he is not appreciated as much as he should be. I'm not being biased, but Jensen Ackles' acting skills are just perfect. Nobody can possibly do better than him. He's a hallmark!

   And, oh, his pretty face is just perfection! Plus, his voice is so out-of-this-world! I don't think anybody even comes near Jensen in any regard.

   Jensen is caring and generous. He's charismatic, and he really shows his love for his fans. He values friendship and is dedicated to portraying Dean Winchester in a way that we love. I could never imagine Dean being brought to life by anyone else.

3. David Tennant - Doctor Who

   

   David Tennant is a Scottish actor known for his roles in television and film. He is best known for portraying the Tenth Doctor in Doctor Who, Alec Hardy in Broadchurch, and Kilgrave in Jessica Jones. Tennant has also appeared in the Harry Potter film series as Barty Crouch Jr. and played the lead in... read more

   Charming from the first moments, his character is both dramatic and hilarious. He's so sincere and noble that he takes you through all the adventures and hardships, and you really stick with him to the very end.

   David Tennant ROCKS! He is the best incarnation of the best character in the best show ever!

   Someone who really knows how to act. He can make us cry and laugh within 30 seconds.

4. Brent Spiner - Star Trek: The Next Generation

5. Tom Baker - Doctor Who

   

   Thomas Stewart Baker (born 1934) is an English actor best known as the Fourth Doctor in the science fiction series Doctor Who (1974 to 1981), the longest tenure of any actor in that role. Since then, he has narrated the sketch comedy series Little Britain and appeared in numerous film and television... read more

6. DeForest Kelley - Star Trek: The Original Series

7. Michael Dorn - Star Trek: The Next Generation

8. William Hartnell - Doctor Who

   

   William Henry Hartnell (8 January 1908-23 April 1975) was an English actor best known for portraying the first incarnation of the Doctor in the long-running British science-fiction television series Doctor Who, from 1963 to 1966. He reprised the role in 1972 and 1973.... read more

9. Patrick Stewart - Star Trek: The Next Generation

   

   Sir Patrick Stewart is an English actor whose career has included prominent roles in theatre, television, and film. He is best known for portraying Captain Jean-Luc Picard in Star Trek: The Next Generation and Professor Charles Xavier in the X-Men film series... read more

10. Ian Somerhalder - The Vampire Diaries

    

    Ian Joseph Somerhalder is an American actor, model, and director. He first gained attention playing Boone Carlyle on the TV drama Lost (2004-2005). He's best known for his role as Damon Salvatore on The CW's supernatural drama The Vampire Diaries (2009-2017).

    He is also the best.

The Newcomers
11. ?

    Karen Gillan - Doctor Who

    

    Karen Sheila Gillan, born on November 28, 1987, is a Scottish actress and filmmaker. She first rose to fame for her role as Amy Pond, a companion to the Eleventh Doctor, in the BBC series Doctor Who from 2010 to 2013. Her performance earned critical acclaim and a devoted fan base... read more

12. ?

    Linda Park - Star Trek: Enterprise

    
The Contenders

13. William Shatner - Star Trek: The Original Series

    

    William "Bill" Shatner (born March 22, 1931) is a Canadian actor, author, producer, director, and comedian. He is best known for originating the role of Captain James T. Kirk in the Star Trek television series (1966-1969) and its subsequent films. Shatner has also released music albums, written several... read more

14. Sarah Michelle Gellar - Buffy the Vampire Slayer

    

    Sarah Michelle Gellar is an American actress, producer, and entrepreneur. After being discovered by an agent at age four in New York City, she made her acting debut in the made-for-TV movie An Invasion of Privacy (1983).

    She rose to fame in the late 1990s for her role as Buffy Summers in the television... read more

    She has to be number one. Nobody can come close to her.

15. Leonard Nimoy - Star Trek: The Original Series

    

    Leonard Simon Nimoy (1931 to 2015) was an American actor, film director, photographer, author, singer, and songwriter. He is best known for his portrayal of Spock in the Star Trek franchise. Nimoy published several books of photography and poetry, and recorded multiple musical albums.

    Live long and prosper.

16. Alyssa Milano - Charmed

    

    Alyssa Jayne Milano is an American actress, producer, former singer, and activist. She is best known for her roles in Who's the Boss?, Melrose Place, Charmed, My Name Is Earl, Mistresses, and Wet Hot American Summer: Ten Years Later. Milano has also been active in political and social causes, including... read more

17. Gillian Anderson - The X-Files

    

    Gillian Leigh Anderson is an American-British actress, activist, and writer known for her work in film, television, and theater. She gained international fame for her role as FBI Special Agent Dana Scully on The X-Files. Anderson has also received critical acclaim for her performances in The Fall and... read more

    She's amazing - a groundbreaking character for television!

18. Rose McGowan - Charmed

    

    Rosa Ariana McGowan (born September 5, 1973) is an American actress known for her work in television and film. She starred as Paige Matthews in the TV series Charmed and played Cherry Darling in the 2007 action-horror film Planet Terror. In 2018, she launched her own documentary series, Citizen Rose,... read more

19. Tom Welling - Smallville

    

    Gives us the most human and relatable Clark Kent ever.

20. Matthew Fox - Lost

    

21. Billie Piper - Doctor Who

    

    Billie Paul Piper is an English singer, dancer, and actress. She rose to fame in the late 1990s as a pop singer and became the youngest artist to debut at number one on the UK Singles Chart with Because We Want To... read more

22. David Duchovny - The X-Files

    

    David William Duchovny, born on August 7, 1960, is an American actor, writer, producer, director, novelist, and singer-songwriter. He is best known for his roles as FBI agent Fox Mulder in The X-Files and as troubled writer Hank Moody in Californication.... read more

    The heart, the soul, and the mind of The X-Files. I love seeing how he deals with his boss, Skinner. His girlfriend, Scully. And his friends, The Lone Gunmen.

    He is the bravest man in the world.

    The most iconic character in the entire world. The only one who never changed (unlike his partner). He has always been the same perfect hero from the first episode until the end.

    The best character ever! A real hero who doesn't have superpowers - just intelligence. A man who never gives up.

23. Jeffrey Dean Morgan - The Walking Dead

    

    Jeffrey Dean Morgan (born April 22, 1966) is an American actor. He is best known for portraying Negan Smith in the AMC horror drama series The Walking Dead (2016-2022) and its spin-off The Walking Dead: Dead City (2023-present).... read more

24. Naveen Andrews - Lost

25. Richard Dean Anderson - Stargate SG-1

26. Jeri Ryan - Star Trek: Voyager

    

27. Jon Bernthal - The Walking Dead

    

    Jonathan Edward Bernthal (born September 20, 1976) is an American actor. He gained prominence for portraying Shane Walsh on the AMC horror drama series The Walking Dead (2010-2012, 2018), where he was a starring cast member in the first two seasons.... read more