 He appeared in the television movies "Blind Ambition", "Billionaire Boys Club", and "My Son is Innocent".Sloyan has appeared in a number of science fiction television series, including "Buck Rogers in the 25th Century", in which he portrayed Barnard "Barney" Smith in the episode "The Plot to Kill a City", and several roles in the "Star Trek" franchise.In "", he portrayed Alidar Jarok (a defecting Romulan admiral) in "The Defector", and Alexander Rozhenko (Worf's son) as an adult in the future, in "".