Nebula

"I fall but I get up stronger. Every wound I take improves my service to my master. I will survive and I will serve. For I am Nebula."

- Nebula

Nebula is a Luphomoid assassin and a life-long devotee of the intergalactic warlord, Thanos.

Early Life
Raised in the service of the interplanetary warlord, Thanos, Nebula trained to be a Galaxy-Class Killer under the tutelage of Ronan the Accuser. Nebula would often train alongside fellow Thanos devotee Gamora and Korath.

One training scenario on the arboreal world of Dervani saw Nebula and Gamora pitched against each other in a competition to retrieve a data ingot for Ronan. The girls sparred on the surface, leading to Gamora throwing Nebula of a cliff, severely injuring her and requiring multiple cybernetic replacements.

Upon reaching adulthood, Nebula and Gamora served Thanos under the command of Korath the Pursuer. On a mission to locate the Orb on the planet Praxius IX, inside of one of the Cloud Tombs of Praxius, Nebula went in without waiting for Gamora and fell into a trap. Ensnared by an impenetrable Laser Thorn Energy Net, Nebula found herself at the mercy of the inhabitants and needed to be rescued by Gamora.

Never one to tolerate failure, Thanos ordered Gamora to leave Nebula behind, with only a sharp blade to free herself. Nebula was forced to amputate her own arm in order to escape the netting.

Guardians of the Galaxy
Thanos lent Nebula and Gamora to Ronan, who made a deal with Thanos to retrieve the Orb for him. When Gamora betrayed Ronan and Thanos, The Other called Nebula and Ronan to the Sanctuary to discuss this turn of events with Thanos. Nebula, Ronan, and Korath continued to search for the Orb, until they eventually got it. When Ronan betrayed Thanos and said he would kill him, Nebula took Ronan's side, as she hates Thanos and said she'd help him destroy a thousand planets if he killed him. During the final battle, Gamora fought Nebula, who was eventually hanging onto the edge of Ronan's ship. Gamora tried to save her and convince her to fight against Ronan, but Nebula amputated her mechanical hand and fell, landing on top of a Ravager's ship. She threw the pilot out and flew the ship away.

Cybernetic Enhancements
In her early years under Thanos' wing, Nebula received various critical injuries that required her to endure extensive cybernetic augmentation.
 * Contact Whiplash
 * Tempersteel Claws
 * Concussive Blasts

Abilities
Ever since she was a child, Nebula has trained extensively as an assassin under Thanos and Ronan. A master of armed and unarmed combat, Nebula has been seen using dagger-like weapons in battle.

Relationships

 * Thanos - Enemy and adoptive father, former Master
 * Ronan the Accuser † - Instructor
 * Korath the Pursuer † - Ally
 * The Other † - Ally
 * Guardians of the Galaxy - Enemies
 * Star-Lord
 * Drax the Destroyer
 * Gamora - Adoptive Sister turned Enemy
 * Groot
 * Rocket Raccoon

Trivia

 * Nebula's appearance in the movie seems to be based more on her second incarnation from the comics.
 * Nebula shows complete loyalty to Thanos most of the time, but also states that she would gladly destroy a thousand worlds if it meant Thanos would die.