Ridley (Metroid)
Ridley's status within the ranks of the Space Pirates is unclear, with some sources stating that he is the leader of the entire Space Pirate race, whereas others portray him as simply the Pirates' military commander or even a mere enforcer within the Pirate military ranks, subservient to Mother Brain or Space Pirate High Command. Regardless, he is consistently depicted as a ruthless and cunning tactician who never passes up an opportunity to bring his considerable ferocity to bear on the battlefield, opting to overwhelm his opponents with an unwavering onslaught of attacks from his mouth, claws, and tail. He is also incredibly cruel, actively taking pleasure in the killing and torment of others; at one point in the official manga he taunts Samus by claiming he may have devoured her mother's corpse after killing her, and a Space Pirate log entry in "Metroid Prime" notes that being the mainstay of the Pirate security force is "a job he will certainly relish."
Metro 2033
Although Polis do not agree to intervene, a faction known as the Brahmins (who consist of scientists and academics who collect books from the library above), contact Artyom. They offer a solution to the threat of the Dark Ones in exchange for Artyom's help in recovering a sacred book, as they believe him to be psychically sensitive. Artyom travels to the surface with Melnik and young Brahmin called Daniel. They enter the library and are attacked by the 'librarians', mutated creatures that reside there. Daniel is mortally wounded, but before dying, gives Artyom his reward anyway. It is an envelope containing directions to a functioning missile silo. Artyom and Melnik flee without the book and re-enter the metro, arriving at station Kievskaya. Melnik leaves Artyom at the station while he goes to collect reinforcements but whilst he is away, Artyom becomes involved in the search for a missing child. Artyom and the child's father are abducted by a tribe of cannibals who worship 'The Great Worm'. They are rescued by Melnik and a squad of fighters and they escape into Metro-2, a secret set of tunnels that lead to the missile site.