Fantômas is a fictional French criminal created in the early twentieth century and later adapted across books, serials, and films. This laugh is associated with the character’s screen image as a calculating master of disguise. The best-known comedy-adventure film trilogy began with Fantômas in 1964, directed by André Hunebelle and starring Jean Marais in the title role. Short extracts highlighting the villain’s eerie manner have continued circulating online, where the laughter remains useful as a compact cue for scheming, deception, and theatrical menace.