"Ah, Elaine. Tis be a sweet day in Hell when you feel the fiery breath of my kiss on your lips and become my undead bride. I'll destroy any man who dares get in me way. Suffering sailors, tis good to be dead!"

Captain LeChuck is the primary villain and main catalyst of the Monkey Island series, setting in motion most of the events that make up the entire series and has always been directly or indirectly responsible for all the conflict in each game. Considered by many to be the most notorious and ruthless pirate to ever sail the seas, LeChuck was known for his cruelty and sadism in life and was obsessed with acquiring immense power through voodoo energy to conquer the Seven Seas. Establishing a reign of terror that took countless lives and immersing himself in the dark forces of voodoo in pursuit of power for decades, the pirate captain eventually met and became obsessed with Elaine Marley, the main heroine of the series, who rebuffed his advances, causing LeChuck's lust for power to become shared with an unhealthy fixation on Elaine and a desire to make her his unwilling, undead bride to assist him in his nefarious schemes and designs. Not willing to let Elaine elude his grasp, LeChuck began to make his plans to find the means to control the young woman, as well as the immense political power and influence she held over the Caribbean, for his own purposes.

To this end, LeChuck sacrificed what little humanity he had left and became a demonic, undead pirate, carrying over his lust and obsession for voodoo and Elaine Marley and reigned the seas as a feared and sadistic entity, forming numerous plans to abduct and marry Elaine and obtain ultimate voodoo powers to assume complete control over the seas. To accomplish these goals, the villain usually makes plans to build up an unstoppable demonic army and acquire rare voodoo treasures and artifacts, including the treasure of Big Whoop, the Ultimate Insult, and La Esponja Grande, to wield their incredible powers for his own ends. His plans to marry Elaine and conquer the seas are consistently foiled by Guybrush Threepwood, the main protganoist of the series, who soon becomes LeChuck's arch-nemesis due to his constant interference, culminating in a decade long battle between the two. Regardless of how many times he is defeated, LeChuck's evil is continuously reborn due to his perpetual desire to torment Guybrush and Elaine in increasingly grotesque incarnations including a ghost, zombie, and demon. The secrets to his death and demonic voodoo powers are revealed as well as much of his past throughout the series, making up the backbone for much of the events that have occurred before and throughout the series.