He had enough coordination to keep many Microbots doing different things at once. Genius-level intellect: Callaghan was originally an inspiration to lots of young geniuses due to his many inventions and became the dean of the SFIT because of this.Upon becoming Yokai, he wore a white, yellow-eyed Kabuki mask with red stripes to hide his face and dressed in a black trench coat, stealth suit, black gloves, leg wraps, and ankle-length ninja boots.Īfter being incarcerated, Callaghan wore an orange prison uniform, which indicates the status of medium-risk. He was often seen wearing sweater vests and slacks. Still, after Abigail was revealed to be alive and brought back, for a brief moment, Callaghan's face expressed silent repent, hinting he regretted his actions once he was incarcerated.Ĭallaghan is a middle-aged man who has blue eyes, grey hair, and slightly wrinkled skin. Because of this, he did not care about hurting anyone getting in his way, even if it was people that cared about him. Upon getting a hold of the Microbots, he faked his death and became relentless, doing his plans anonymously and in secret. As a direct result of his loss, Callaghan's mental and physical health was borderline turbulent, which even Baymax's scan of him diagnosed with acute stress disorder, high risk of cardiovascular disease, and emotional instability. Krei and destroy everything he had as payback. He kept his daughter's "death" to a minimum exposition and still appeared relatively calm after it, but behind the scenes, he planned a way to get to Mr. When his daughter Abigail was lost, he believed her to be dead and was consumed by rage and desire for revenge against Alistair Krei and his company, who were responsible for it. He does not like it when people try to do things the easy way or take shortcuts to get to their goals. Ultimately, this would lead to Callaghan discarding any semblance of his former self and the birth of the villainous entity known as Yokai.Ĭallaghan was a highly intelligent man who sought to teach young people and make the world a better place. The event catalyzed a transformation in Callaghan-he began to descend into madness, growing more unstable and obsessed with revenge towards Krei. Callaghan, who was present during the test, snapped and tried to assault Krei in a fury, blaming him for losing Abigail. However, during the experimental test run, the portal experienced a malfunction and was forcibly shut down, trapping Abigail in the space between the portals. One day, Krei founded Project " Silent Sparrow", an experimental portal design meant to revolutionize teleportation technology. Callaghan was shown to support Abigail up to adulthood when she would become the test pilot for Krei Tech Industries under Alistair Krei. Though Callaghan was passionate about his work, his daughter Abigail was the light of his life. One of these students, Tadashi, admired him greatly. Later in his life, Callaghan became an instructor and the head professor at San Fransokyo Institute of Technology to mentor the new generation of prodigies. He was recognized for his work in the fields of robotics and was the creator of Callaghan's Laws of Robotics, as well as the Callaghan-Catmull spline. Once a renowned scientist, he was an aspiring man with the ambitious hope of using his research to make the world a better place. Callaghan has a military background, but later turned his goals to science and technology.