T'ari O'Keefe - Starfleet Engineering.
T'ari is considered a Half-Human/Half-Orion. Her Aunt' Li'ira was one of the first Green Orions to make command rank in Starfleet.
T'ari and her crew are one of numerous contemporary ships and crews assigned to Starbase Mariner 10 as reinforcements and force enhancement. T'ari followed her aunt into Starfleet, and, a fresh faced young engineering officer has risen radically in the ranks due to losses suffered in the recent wars.
Although T'ari considers herself a spacer and was born on a commercial ship in space, her family has retreated to Ireland on Earth until things get less exciting and dangerous in deep space.
Although initially, T'ari was not part of the Temporal Displacement of the Mariner 10 project, the Future had other ideas and the truth of the whole thing was revealed during multiple time incursions leading to the First Temporal War with the Nak'hul.
A Quantum Duplicate of her Aunt is present at Mariner 10, from about 40 years ago. T'ari avoids her time shifted Quantum Duplicate Aunt to avoid awkward conversations.
T'ari dreams of the day when The War is over and she can turn her attention to Exploring Strange New Worlds.
Ship: Yamato Class USS Gregory, named for 21st century historian/philosopher Anthony Gregory