- "The test is over, Callie; just let it go."
- ―Seth Dormer
Callie Hannigan is a student on the S.H.I.E.L.D. Academy of Science and Technology.
Callie Hannigan received at least one Ph.D. and was admitted in the S.H.I.E.L.D. Academy of Science and Technology.
After a test, she visited the campus pool with Seth Dormer and another student. Unbeknownst to her, Dormer and Donnie Gill had planted an invention of their own devising, the Atmospheric Moisture Freezing Device in the pool to draw Agent Leo Fitz to the Academy. Upon seeing the pool beginning to freeze she warned them to get out. When Coulson's Team was called to the Academy to investigate the happenings, she attended the lecture given by Agents Fitz and Jemma Simmons on potentiality.