Maria Theresa Ullrich studied at the Berg Vocal Institute in Gummersbach and has been a member of Stuttgart Opera since 1998. At the Youth Opera there she took the rôle of the child in Ravel’s L’enfant et les sortilèges, making her début at the opera-house as Polina in The Queen of Spades. She followed this with Fyodor in Boris Godunov, Hänsel, Fortuna / Speranza in Il ritorno d’Ulisse in patria and Annio in La clemenza di Tito, with Cristina in I pazzi per progetto, the Page in Salome, Nireno in Giulio Cesare in Egitto, Emilia in Otello, and Christa in The Makropoulos Case. She took the rôle of Speranza in Orfeo, Second Lady in Die Zauberflöte, Flora Bervoix in La traviata, Grimgerde in Die Walküre, Cherubino in Le nozze di Figaro, Rosina in Il barbiere di Siviglia and Second Maidservant in Elektra. Guest engagements have taken her to the Zürich Opera House, the Mannheim National Theatre, as Medea in Handel’s Teseo at the Klagenfurt Stadttheater and as Dorabella at the Cantiere Internazionale d’Arte of Montepulciano.