Nat'al

Nat'al was from Tal Shiar operative in the early 25th century. He commanded the Tal Shiar starship (as of mid-2410). 

History
Nat'al was originally an operative in the Romulan Tal Shiar, but left the organization when he discovered they were experimenting on Romulan kind. Since, he has worked with intelligence agents from the Klingon Empire, as well as other former Tal Shiar agents who left the agency from various reasons.

In 2410, Nat'al and his operatives had tracked down Nat'tak, a Reman resistance captain who had unknowingly been working for the Tal Shiar, although it was discovered that they had planted him with some kind of micro-technology that allowed them to manipulate him without his knowledge until the device was removed.