Astrid Farnsworth is a Fringe Division agent in the Alternate Universe. She specializes as a technical support analyst at the Manhatan Fringe Division Headquarters. Her odd social behavior and unusually high proficiency with mathematics in general (and probability in particular) indicate that she has Asperger syndrome or high-functioning autism, which she believes could be the cause of the tension between her and her father. She crossed over to the prime universe in order to meet her alternate after hearing so much about her. While there, she assisted in a case using her advanced abilities.