Yokai

"..."

 is a limited-time character released with, and is a part of the Big Hero 6 character collection.

About
Professor Robert Callaghan (also known as ) is the main antagonist of Disney's 2014 animated feature film, Big Hero 6.

Professor Callaghan was the head of the San Fransokyo Institute of Technology's robotics department, and mentor of Tadashi Hamada. He assumes his masked supervillain identity after a tragedy drives him to become a malefactor bent on personal vengeance.

Interactions
Level Ups=


 * }


 * -|Activities=

* Ito Ishioka Robotics Lab
 * align="center"|6
 * Revisiting a Former Life
 * Revisiting a Former Life

* San Fransokyo City Lvl 8
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 * Downtown Chase
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 * Downtown Chase
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* Ito Ishioka Robotics Lab Lvl 8
 * align="center"|7
 * Confrontation
 * align="center"|7
 * Confrontation
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 * align="center"|10
 * Higher Ground
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 * Higher Ground


 * }
 * }


 * -|Level Ups (During Event)=


 * }

Storyline

 * The Strong & Silent Type (2h)
 * Bot's-Eye View (4h)
 * Bittersweet Memories (6h)

Trivia

 * is available to purchase in the Big Hero 6 Legendary Chests Promotions since.
 * is available to purchase in the Villains Chests Promotions since October 2018.
 * is one of the few characters in the game who has a different musical theme from the other characters in his franchise collection when he is unlocked/level up.