T'Shar (24th century)

T'Shar ​is a Romulan female who lives in the 24th century and services the Federation and Starfleet  the first Romulan who joined Starfleet as Chief Science Officer onboard the USS Helena under the command of Captain Marcia Taylor. (Star Trek: Helena)

​Early life
T'Mir was born on the homeworld of Romulus in 2341 to a mother that's in the senate and a father that's in the Romulan military, she had a great childhood she was brought up to hate the Federation and humans for defeating them during the Earth-Romulan War.

Romulan Career
In 2369, at the age of 28 T'Mir just finished her military training into the Romulan military, and served aboard the under the command of Commander Toreth. At the start of the cold war with the Dominion the Romulans were not going to take much action but provided Starfleet with a cloaking device for the USS Defiant, provided that they send them all the information on the Dominion, She lost her father at the Battle of the Omarion Nebula in 2371 she was wanting to find whoever sent her father to his death and get revenge.

USS Helena
In 2371, she was asked by the Senator to serve aboard a Federation starship to understand their Human neighbors she agreed and was posted aboard the USS Helena (NCC-1789) as chief science officer. At first she had some looks with the exception of Commander Martin and Lieutenant Sito. She met chief medical officer Doctor Steven Carlson and they fell in love even though she was very tough about how she felt about Humans and the Federation due to them defeating her people during the Earth-Romulan War of 2155-2160 but she melted her ice and they got married before the war.