Spot was an average man with white hair, presumably his hair turned white from the extreme amount of stress from being cruelly abused by Yunju as well as the constant impending doom of being executed by the latter. He also wore no clothes, with only a collar and leash around his neck, as per the Chimera Ant's will. Much like Rover, his tears never stopped in his appearances.
With Spot's mind, body, and spirit were broken by being "tamed" by Yunju, he and Rover acted like 'human-dogs' and was consistently fearful and terrified for his life. Together, they did everything in their power to try and survive under the cruel reign of Yunju, no matter how pitiful it was.
Chimera Ant arc
After Yunju's team attacks the hidden D² Manufacturing Plant in NGL, Rover and he are made 'human-dogs' by the Chimera Ant. When Kite, Gon, and Killua arrive at the factory, Spot and Rover begs them for their help, but Yunju intervenes by killing Spot.
- In the Viz translation of Chapter 193, by mistake or choice of adaptation, Mosquito says "Fido" instead of the Spot's nomination.
Translations around the World