Gamora

Gamora is the last known Zehoberei after Thanos eradicated the race for defying him when she was a child. He decided to spare Gamora and raised her in cruel circumstances as his "daughter". Thanos raised her to be one of his personal assassins.

When Thanos made an alliance with the terrorist Ronan, he sent Gamora and his other adopted daughter Nebula to serve Ronan. When Ronan sent Gamora to retrieve him the orb, she took this opportunity to betray Ronan and turn her back on Thanos.

She became friends with other outlaws such as Peter Quill, Rocket, Groot and Drax. Together they decided to stand up to Ronan and defend the Nova Empire from him, they became unofficially known as the Guardians of the Galaxy.