Worf – Michael Dorn
We’re going back to Star Trek again, but this time we’ll be seeing Worf, played by Michael Dorn, on the show. Klingon character Worf was introduced in the 1990s sci-fi series Deep Space Nine as a replacement for The Next Generation’s Klingon. The alien has starred in more episodes of Star Trek than any other character, establishing him as a Science Fiction Icon.

Over the series, Worf’s appearance changed a bit. For example, his forehead prosthetics were raised, and his wrinkles lessened. According to Michael Dorn, it took about three hours for the Starfleet officer Lieutenant’s makeup.