Teletha "Tessa" Testarossa is the captain of the TDD-1 Tuatha de Danaan, a submarine operated by the anti-terrorist organization Mithril. She's best known for being a child prodigy who reached this commanding rank by age 16—and for being genuinely clumsy despite her tactical brilliance. American-born, she's spent most of her life on military bases and submarines rather than on solid ground.
Height: 163cm | Hair: Silver | Eyes: Grey
Tessa didn't just command the Danaan; she was one of its chief designers and created Dana, the submarine's AI system. Her subordinates mean everything to her, and she's proven herself sharp when it comes to battlefield strategy and military decision-making, even if her personal life is less coordinated. She has a habit of fiddling with her ponytail when nervous.
Her one athletic weakness? Everything except swimming, which she happens to be genuinely good at. Kurz Weber once noted that whenever someone told Tessa she couldn't do something, she'd find a way to prove them wrong—a stubbornness that served her well in military operations but sometimes made her bristle against the weight of command itself. There are moments where the stress clearly gets to her, even hints of depression about the job, but she manages the pressure with surprising stamina.
The love triangle involving her, Sousuke Sagara, and Kaname Chidori is a running subplot—Tessa's interest in Sousuke goes beyond professional respect. Yet despite competing for his attention, she and Chidori genuinely like each other and bond over conversations about Sousuke's peculiar charm.
Content compiled by AnimeList.moe from publicly available sources.
