Michael Dorn as Worf
Worf, son of Mogh, was one of, if not the, most influential Klingons in the latter half of the 24th century.
In 2376, as the Federation Ambassador to the Klingon Empire, he traveled to Deep Space Nine aboard the IKS Nay'par. In a private meeting with his former comrades, he admitted he approved of many of Commodore Stone's policy changes. ("Gatekeeper")