Ronan the Accuser

"They call me terrorist, radical, zealot... because I obey the ancient laws of my people, the Kree... and punish those who do not. Because I do not forgive your people for taking the life of my father, and his father, and his father before him. A thousand years of war between us will not be forgotten!"

- Ronan the Accuser's motives

Ronan the Accuser is the main antagonist of Guardians of the Galaxy and a minor character in Captain Marvel.

Personality
Ronan the Accuser is a merciless warlord, even willing to kill an entire race of innocent people. He blames the Xandarians for the Xandar-Kree War due to the deaths of his father, grandfather, and great-grandfather in the past.