Worf, son of Mogh (wo'rIv mogh puqloD in the Klingon language) is a fictional character in the Star Trek franchise. He appears in the television series Star Trek: The Next Generation (TNG) and seasons four through seven of Star Trek: Deep Space Nine (DS9) as well as the feature films Star Trek Generations (1994), Star Trek: First Contact (1996), Star Trek: Insurrection (1998), and Star Trek: Nemesis (2002). Worf is the first Klingon main character to appear in Star Trek, and has appeared in more Star Trek franchise episodes than any other character. He is portrayed by actor Michael Dorn.
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