Michael Dorn

Micheal Dorn is the actor who played Worf in Star Trek: The Next Generation and Deep Space Nine. He also played Worf's Grandfather and namesake Colonel Worf in Star Trek VI: The Undiscovered Country. Dorn has appeared more times in the Star Trek franchise than any other actor, 227 episodes and five movies.

Dorn has also leant his voice, mostly in the role of Worf, to the following computer games:
 * Star Trek: Armada
 * Star Trek: Away Team
 * Star Trek: Invasion
 * Star Trek: Klingon
 * Star Trek: Klingon Academy as Thok Mak
 * Star Trek: The Next Generation - A Final Unity

Further more Dorn has directed four episodes of Star Trek:
 * In the Cards (DS9 episode 5x25)
 * Inquisition (DS9 episode 6x18)
 * When It Rains... (DS9 episode 7x21)
 * Two Days and Two Nights (Enterprise episode 1x25)