Colonel R'mor, a Romulan male, was General Kassus' main lieutenant in the Tal Shiar in the 2380s. (Star Trek: Pioneer) In late 2382, R'mor ran an operation that involved drugging and the using a mind probe on Captain Markev Riganoff of the USS Ticonderoga (NCC-71837). ("Night Club") In early 2383, R'mor was in charge of interrogating the human captive Felix Adar, and reported back to General Kassus that, according to Adar, Yoth was the homeworld of the Oppressors (which was later proven to be incorrect). ("The Forgotten Planet")