Vice admiral Hayes was a flag officer in Starfleet in the 2360s. In 2369, after the USS Enterprise-D had discovered the USS Yosemite adrift in the Igo sector, Hayes contacted the Enterprise-D to inform them about a Cardassian attack on two Ferengi freighters, fearing a large-scale Cardassian movement to the Igo sector if the USS Yosemite had been attacked by the Cardassians as well. This later turned out not to be the case. (TNG: "Realm of Fear" ) Admiral Hayes was played by actress Renata Scott.