Kassus

General Kassus, a Romulan, was the leader of the Tal Shiar in the 2380s. (🇸🇹)

In late 2382, Kassus approved of an operation that involved using a mind probe on Captain Markev Riganoff of the USS Ticonderoga (NCC-71837). ("Night Club")

In early 2383, the General authorized a secret mission to Yoth, believing that it was the Oppressor homeworld. When the mission became known to the Senate and Starfleet, Kassus denied all knowledge of it, and had the human captive, Felix Adar, released. ("The Forgotten Planet")