Apple TV+'s adaptation of is filled with notable actors who bring the psychopathic and oddball characters of Martha Wells' books alive. Murderbot follows the titular robot Murderbot (Alexander Skarsgård) as he awkwardly interacts with humans and forms genuine bonds with them. Violent title aside, Murderbot is a heartfelt and hilarious comedy filled with colorful characters, a fascinating conspiracy, and a dark past behind the socially awkward eponymous robot. Those elements are blended together so well that Murderbot is easily one of the best shows on Apple TV+, and one of Alexander Skarsgård's best roles as well.

Since the Murderbot Diaries books are so layered and heartfelt, Murderbot had a difficult time finding the right actors to play such complicated characters. Luckily, Apple TV+'s show brought together a star-studded cast of character actors and leading talent. Because of the actors involved, Murderbot is one of the better book adaptations in recent memory, and each of the show's characters feel fully realized. That has helped Murderbot achieve a rare 100% on Rotten Tomatoes after the first 15 reviews, so the cast is worth getting to know.

: Alexander Skarsgård was born in Stockholm, Sweden, to famous actor Stellan Skarsgård. . Since then, Skarsgård has had an incredibly varied acting career. He's starred in action films like The Northman, comedies like Succession, and dramas like Big Little Lies. Interestingly, he's also played a vampire again, though it was in the comedic series What We Do in the Shadows.

: Alexander Skarsgård plays the titular sentient robot in Murderbot. Murderbot is a SecUnit, essentially a cyborg with both organic and mechanical parts who is deemed property by some and a sentient, artificial lifeform by others. Unlike other SecUnits, Murderbot hacked the governor module that kept it compliant with company orders, and it uses its freedom to watch shows like The Rise and Fall of Sanctuary Moon while attempting to hide its independence - and its intense social anxiety - from its clients.

: Noma Dumezweni was born in Eswatini, formerly known asSwaziland. . Both before and after 2020, however, Dumezweni has had a very busy acting career. She's starred in several Disney movies (Mary Poppins Returns and The Little Mermaid), several shows (Made for Love and Black Earth Rising), and had several smaller appearances in critically acclaimed and popular series, like Only Murders in the Building and The Watcher.

: Noma Dumezweni plays Mensah in Murderbot. Mensah is the leader of PreservationAux, the group of scientists that Murderbot is chartered to protect. Mensah is seen as a capable leader by the rest of her crew, and she shows great empathy to Murderbot early on. She also suffers from panic attacks.

: David Dastmalchian was born in Philadelphia, Pennsylvania, though he was raised in Kansas. . More recently, Dastmalchian also had a major role in The Suicide Squad, which served as a major uptick in popularity for the actor. He has since appeared in several major movies, including Prisoners, Dune: Part One, Oppenheimer, and he even starred in the horror film Late Night with the Devil. Though he's mostly been known as a character actor, Dastmalchian is quickly becoming a leading man.

: David Dastmalchian plays Gurathin in Murderbot. Gurathin is an augmented human, meaning he can use his brain to directly interact with digital systems, though not to the same extent as a SecUnit can. Gurathin is immediately suspicious of Murderbot after it rescued some of his friends, and his suspicions cause some problems for PreservationAux.

: Tamara Podemski was born in Toronto, Ontario, to an Ojibwe mother and an Ashkenazi Jewish father. . Since then, Podemski has focused mainly on television roles. She's starred in shows like Outer Range alongside Josh Brolin, Reservation Dogs alongside Zahn McClarnon, and Unsettled.

: Tamara Podemski plays Bharadwaj in Murderbot. Bharadwaj is a geological chemist working on the PreservationAux team, and she is attacked by a monster known as "the animal" in the first episode. Bharadwaj's attack causes Murderbot to save her and remove its helmet, setting off the events of the show.

: Tattiawna Jones plays Arada in Murderbot. Arada is another member of PreservationAux, and she was with Bharadwaj when she was attacked. Murderbot spoke to Arada in a comforting way, causing Gurathin to realize it was malfunctioning. Jones is known for shows like Orphan Black: Echoes.

: Sabrina Wu plays Pin-Lee in Murderbot. Pin-Lee is another member of PreservationAux, and she's married to Arada. Wu is primarily known for writing, not acting, as they wrote both Dying for Sex and Doogie Kamealoha, M.D. As an actor, they're best known for playing Mx. Geoffrey in Abbott Elementary.

: Akshay Khanna plays Ratthi in Murderbot. Ratthi is another member of PreservationAux, though he's mostly been known for making dumb decisions and for being part of Arada and Pin-Lee's throuple. Khanna is best known for movies like Red, White, & Royal Blue and shows like Andor.

: John Cho plays the Captain in Murderbot's "show-within-a-show," The Rise and Fall of Sanctuary Moon. Captain is a James Kirk-esque parody who has a romantic relationship with one of the bots on his ship. Cho is known for movies like Star Trek and Harold & Kumar Go to White Castle.

: Clark Gregg plays Lieutenant in The Rise and Fall of Sanctuary Moon. Gregg is best known for movies like The Avengers and shows like Marvel's Agents of S.H.I.E.L.D.

: Dewanda Wise plays Navigation Unit in The Rise and Fall of Sanctuary Moon. Navigation Unit is a robot who starts a romantic relationship with her captain. Wise is known for movies like Jurassic World: Dominion and The Harder They Fall.

: Jack McBrayer plays the First Officer in The Rise and Fall of Sanctuary Moon. McBrayer is known for shows like 30 Rock and movies like Forgetting Sarah Marshall.

: Anna Konkle plays an unknown character in . It's possible that Konkle is playing a member of the DeltFall expedition, another exploratory group on the same planet as PreservationAux. Konkle is best known for shows like PEN15 and Rosewood.