Ronan was a radical Kree warlord and former member of the Accusers.
Real Name: Ronan
Portrayed by: Lee Pace
1. Captain Marvel
In 1995, during the Kree-Skrull War, Ronan worked with Yon-Rogg and the Starforce after the Ambush on Torfa to wipe out the last of the Skrull refugees. Ronan and the Accusers were then called to drop warheads on Earth to wipe out the remaining Skrull opposition there, but was forced to retreat when Captain Marvel launched a counter-offensive against the Kree, promising retribution.
2. 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.