Irina Karlovassiedit this page
From Memory Alpha, the free Star Trek reference
Irina Karlovassi was an athlete and the biological mother of the Augment Udar in the late 20th century. She won the silver medal in the Olympic Decathlon. Her husband Miklos Karlovassi, a geophysicist, was Udar's biological father. (ENT: "Cold Station 12")
She appeared only as a still picture on the PADD, where she was portrayed by regular extra Amy Kate Connolly, who received no credit for this appearance.