Michael Dorn, American actor and voice artist

Michael Dorn is an American actor best known for his role as the Klingon character Worf in the Star Trek franchise, appearing in all seven seasons of the television series Star Trek: The Next Generation (1987–1994), and later reprising the role in seasons four through seven of Star Trek: Deep Space Nine (1995–1999) and season three of Star Trek: Picard (2023). Dorn has appeared more times as a regular cast member than any other Star Trek actor in the franchise's history, spanning five films and 284 television episodes.

December 9 is the 343rd day of the year in the Gregorian calendar; 22 days remain until the end of the year.