Maria Christina Thayer is an American actress and comedian who was a guest star in what episode of the third season of the American television comedy series "30 Rock"?
St. Valentine's Day (30 Rock): "St. Valentine's Day" is the eleventh episode of the third season, and forty-seventh episode overall, of the American television comedy series "30 Rock". St. Valentine's Day (30 Rock):  Guest stars in "St. Valentine's Day" include Marylouise Burke, Jon Hamm, Salma Hayek, Zak Orth, Laila Robins, Maria Thayer, and Allie Trimm. Maria Thayer: Maria Christina Thayer (born October 30, 1975) is an American actress and comedian.
eleventh