Thomas Shanks took over as Dean when the previous dean went to jail. Thomas was unaware of Abby and Jillian's involvement in the institution until they asked for more money. Upon finding out they existed, he fired them both. He later chased Abby, Jillian, and Erin with a baseball bat as they took the Paranormal Studies Department's equipment from the institution. Abby admitted that none of the equipment actually belonged to her and Jillian.
Doctor Kruger sent Abby into the Nightmare-Scape and based the surroundings on the Kenneth P. Higgins Institute. He posed as Dean Shanks. In an office, he told Abby there was no funding, ghosts will never be real, and she was fired. Abby insisted ghosts were real and that she was a Ghostbuster. Kruger transformed himself and Abby into a clown, her fear.
- Thomas Shanks is a nod to John Candy's character on SCTV, Mayor Tommy Shanks, the Mayor of Mellonville. 
- Ghostbusters: Answer The Call