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Doesn't look very animated to me, and no he wasn't the first Klingon character to appear in the series; that honor goes to Cmdr. Kor, played by John Colicos, who also played Baltar in the original Battlestar Galactica.Amusingly enough, Kor also beat Worf to Deep Space Nine, if memory serves, the first of the episodes he appears in on that series predates Worf's installation as a regular by a season or so.