Teletha Tessa Testarossa series caption first creator voiced name name nickname alias gender species nationality title relatives name name divider name name }} Teletha "Tessa" Testarossa(テレサ・テスタロッサTeresa Tesutarossa) is a fictional character and the tritagonist in the light novel, manga, and anime series Full Metal Panic!. She is portrayed by Yukana Nogami in the original anime, and by Hilary Haag in the English dub by ADV Films and FUNimation Entertainment. Her name is sometimes spelled Teresa Testarossa.