<Li> Nebula appears in the Guardians of the Galaxy TV series, voiced by Cree Summer . In the episode "Origins," Gamora and Nebula were put through training by Ronan the Accuser so that they can fight for Thanos . In the episode "The Backstabbers," the death of Ronan the Accuser has left a power vacuum where Nova Prime mentions to the Nova Corps that there is competition between Korath the Pursuer, Nebula, and Gamora to see who will succeed Ronan the Accuser as Thanos' new general . Gamora pretends to betray the Guardians of the Galaxy so that she can get Nebula and her Chitauri crew into fighting Korath the Pursuer's group . Following the plan and the Guardians of the Galaxy getting away, Nebula recovers Ronan the Accuser's Universal Weapon that Drax the Destroyer threw at her ship . In the episode "Bad Moon Rising," Nebula attacks the Guardians of the Galaxy on the living moon Mandala . Using Mandala's life - giving powers and a special seed, Nebula resurrects Ronan the Accuser and gives him his Universal Weapon as Ronan the Accuser plans to pilot Mandala to Xandar in order to annihilate the enemies of the Kree there . With help from Star - Lord and Groot, Mandala broke free and uses a special magma attack to send Nebula and Ronan the Accuser flying far away from Mandala . </Li> <Li> Nebula appears in Lego Marvel Super Heroes - Guardians of the Galaxy: The Thanos Threat, voiced again by Cree Summer . </Li> <P> Karen Gillan portrays Nebula in the Marvel Cinematic Universe as one of the children raised by Thanos alongside her adopted sister Gamora . Over time, Nebula developed an obsessive need to best Gamora in combat . Every time she lost a sparring match, Thanos subjecting Nebula to torturous mutilation, replacing parts of her body with cybernetic enhancements for further improvement . This imbued Nebula with a deep hatred toward Thanos . </P> <Ul> <Li> Nebula is introduced to the franchise in the 2014 Guardians of the Galaxy . She is sent by Thanos alongside Gamora to assist Ronan the Accuser in acquiring an orb containing the Power Stone . When Ronan learns that he was seeking out an Infinity Stone and betrays Thanos with the intent of using the stone himself to destroy Xandar, Nebula becomes a willing follower when Ronan vowed to kill Thanos once Xandar is destroyed . Nebula is ultimately defeated in combat by Gamora, refusing to be saved by her as she severs her trapped mechanical left hand and escapes Xandar in an Ravager ship . </Li> <Li> Nebula appears again in 2017 Guardians of the Galaxy Vol. 2 . Nebula ended up being captured by the Sovereign for stealing their anulax batteries before the Guardians retrieve her to claim her bounty on Xandar . But Rocket Racoon's act of stealing some anulax batteries placed the group in jeopardy as they crash their ship on a nearby planet, with Rocket and Baby Groot looking after Nebula while the rest are taken by Ego to his planet . But Nebula eventually tricks Groot into freeing her as she takes out both Rocket and Yondu Udonta at the benefit of the latter's mutiny orchestrated by Taserface . Nebula convincing Taserface to claim the bounties on both Rocket and Yondu, convincing the Ravagers to give her a cut of the profit along with a replacement hand and a ship to reach Ego's planet . After an extended fight on Ego, Nebula finally defeats Gamora and vents out her motivation in tracking her down before the two enter an uneasy alliance as they learn of Ego's true nature . Nebula helps the Guardians kill Ego, later parting ways with Gamora after they reconciled to set out alone in her journey to kill Thanos . </Li> <Li> Nebula reappears in the 2018 film Avengers: Infinity War . Nebula was captured by Thanos following her nearly successful attempt on his life . Thanos then tortured her to coerce Gamora to take him to the Soul Stone . Nebula later escapes and joins Star - Lord, Drax and Mantis as well as a faction of the Avengers on Titan . She deduces Gamora's fate and is one of the surviving characters after Thanos uses the completed Infinity Gauntlet to wipe out half of the universe, stranding her on Titan alongside Iron Man . She and Rocket are the only two surviving Guardians by the end of the film . </Li> <Li> Gillan will reprise her role in the untitled sequel (2019). </Li> </Ul>

Who is gamora's sister in guardians of the galaxy