The news comes from his widow, who shared the information on Facebook on Saturday night. The actor, aged 50, worked in Hollywood during the ‘80s and ‘90s, though he was best known for the role of Nog in Deep Space Nine. Over seven seasons, viewers got to know Nog, the first Ferengi to join Starfleet, where he eventually reached the rank of Lieutenant Junior Grade. Nog was a fantastic character, and Eisenberg imbued him with a distinct and powerful sense of life.
Cause of death is unknown at this time.
Sources: io9 SyFY Wire