Connor Rossa was a lieutenant commander in Starfleet in the 24th century. He was the son of Admiral Connaught Rossa, husband of Moira Rossa, and the father of Jeremiah Rossa, the boy raised by Talarians as Jono. He also had a brother who was killed at the Krasner outpost.
In 2357, Connor was killed in battle when the outpost on Galen IV at which he served was destroyed by Talarian forces, including Endar. (TNG: "Suddenly Human")
Connor Rossa was portrayed by recurring background actor Gary Hunter on the photographs and a different unknown actor provided his voice.