Ronan, also known as Ronan the Accuser is a radical member of the Kree race who was disgusted by a peace treaty made between the Kree Empire and Xandar.
Real Name: Ronan
Portrayed by: Lee Pace
1. Guardians of the Galaxy
A ferocious, genocidal militarist, Ronan attempted to eradicate the Xandarians by forging an alliance with the Mad Titan Thanos, offering the Orb in exchange for the destruction of Xandar.
After a long search, Ronan acquired the Orb but, after having seen its true destructive capabilities, decided against giving it to Thanos and chose to take the Orb's power for himself. Using his new-found power, he attacked Xandar, but was defeated and killed by the combined strength of the Guardians of the Galaxy.