Admiral Alidar Jarok (2368).
Alidar Jarok was an admiral in the Romulan military, infamous for commanding the Romulan forces in the Norkan Campaign, or what was known as the massacre of the Norkan outposts to the Federation. His home on Romulus was located near the Apnex Sea, where he lived with his wife and daughter.
In 2366, Alidar Jarok was the target of a programme of deliberate misinformation by the Romulan High Command, designed to brand him as a traitor after he argued that another war with the Federation would destroy the empire. After dismissing him to command a distant sector, the High Command sent him false communiques, records, and orders concerning the establishment of a secret base on Nelvana III, in the Romulan Neutral Zone, in preparation for a massive invasion of Federation space.
Unwilling to allow a war that would devastate both sides to happen, Jarok stole a Romulan scoutship and crossed the Neutral Zone, seeking refuge aboard the USS Enterprise-D. Claiming himself to be Sublieutenant Setal, he informed Captain Jean-Luc Picard of the offensive. However, Picard was skeptical, given Jarok's reluctance to reveal any Romulan military intelligence beyond the buildup at Nelvana III, which included the self-destruction of his ship. Only after Jarok revealed his true identity and provided the disposition of the Romulan fleet along the Neutral Zone, did Picard order the Enterprise to Nelvana III.
When the Enterprise reached Nelvana III, they found no evidence of a base whatsoever -- only a probe designed to send out a subspace signal and ionization disturbances. Realizing that they had fallen into a trap, the Enterprise attempted to retreat, only to be surrounded by three Romulan warbirds commanded by Tomalak. Tomalak revealed the deception, and announced his intention to take the Enterprise back to Romulus as a trophy.
Fortunately, Picard had planned ahead and arranged for substantial Klingon forces to follow them under cloak. Suddenly finding himself outgunned, Tomalak withdrew. Jarok, realizing that he had sacrificed everything for nothing, committed suicide by ingesting a Felodesine chip. He left only a letter for his family, and the memory of his courage. (TNG: "The Defector")
- Alidar Jarok was played by James Sloyan.