Tony Todd from the Candyman franchise is a veteran Star Trek actor. He made several appearances on The Next Generation and Deep Space Nine as Worf’s brother, Kurn.  Besides a Klingon, Todd was also a Hirogen Hunter on Voyager and portrayed an aged Jake Sisko on DS9.

The first time I saw Tony Todd outside of ‘Trek was as Michael Wincott’s right-hand man in The Crow. He also made appearances on Stargate: SG1.