Los Dark is the primary antagonist of Kaizoku Sentai Gokaiger the Movie: The Flying Ghost Ship. The undead captain of the legendary ghost ship who is keeper of the God Eye. While he alone is the owner of the God Eye, he cannot use it as he is not alive.
He lures various greedy individuals into the ghost ship in order to absorb their life force, building up enough life force to bring himself back to life. He pilots an imitation of GokaiOh, a fake GokaiOh in order to lure the Gokaigers into his vessel. The five Gokaigers would be all he needed to fill up on life force. Once he's through he'd be alive once more and able to use the God Eye to conquer the universe. He throws the Gokaigers into a pocket dimension inside the ship to go up against an army of destroyed grunts who were previously allied to villains that past Super Sentai have battled. He intended for them to be trapped there forever while he drained their life force. However, Captain Marvelous makes it out alive, seemingly having left behind his crew. After a duel, Marvelous distracts Los Dark with an explosive Final Wave, in the cover of which he grabs the God Eye and uses its one wish to return the other Gokaigers to him, shattering forever Los Dark's dreams of using the Eye to conquer the universe. In revenge, Los Dark reveals once again the fake GokaiOh and battles the Gokaigers' GokaiOh.
After a lengthy duel which destroys his ship, he is destroyed by the Gokaigers when they summon Variblune, Pat Striker, Dragon Headder, MagiDragon and GekiTiger. With the Fake GokaiOh falling into the burning Ghost Ship, Los Dark is consumed in the explosion.