LeChuck is a fictional character in the Monkey Island series of graphic adventure games. Created by Ron Gilbert for LucasArts, LeChuck was introduced in The Secret of Monkey Island, and is the chief antagonist of the series. Gilbert drew on aspects of the characters in the 1988 novel On Stranger Tides for his concept for LeChuck.
An undead pirate captain, LeChuck is obsessed with pursuing the affections of the series' heroine, Elaine Marley, and exacting revenge upon protagonist Guybrush Threepwood, who is responsible for consistently thwarting his plans and on some points he is depicted as being Guybrush's brother. LeChuck is not limited to one incarnation; across the series, the character has been depicted as a ghost, a zombie and a demon among other forms. While sometimes gullible and naïve, LeChuck is a powerful and intelligent villain, making extensive use of voodoo magic in his megalomaniacal plans. The character was very well received by video game critics.