Teletha Tessa Testarossa
Teletha Testarossa Tessa is the clumsy captain of the Tuatha De Danaan submarine, of an anti-terrorist organization Mithril. She is a U.S. American by birth but has lived on submarines and military bases most of her life. She was born December 24, 1984 and is a child prodigy who achieved the rank Colonel by age of 16. She has silver/platinum hair and gray eyes. Later revealed as behind a Whispered. Her high level of mathimatical and scientific adebtness is dwarfed by her older brother's, which gives her a sense of inferiority. Though not very athletic, she is shown to be a very good swimmer in episode 8 of Full Metal Panic? Fumoffu. Like Sousuke, she hates alcohol, saying that it kills brain cells. She also has an interest for Sousuke extending beyond a professional one, generating a love triangle she shares with Sousuke Sagara and Kaname Chidori. Even though Tessa and Kaname compete against each other for Sousuke, they are good friends in reality. During many episodes they talk about Sousuke and his unique military charm. Tessa also created the Tuatha De Danaan submarine, and Dana, the sub's Artificial Intelligence.