Grusha is a coolheaded person most of the time. He typically keeps his emotions pushed down, rarely if ever showing them. However, when the heat of battle gets to him, he begins to show the feelings that he buries within himself. He enjoys snowboarding, but was forced to give up being a professional snowboarder following a grievous injury and becoming a Gym Leader.

Grusha is extremely stoic due to an undisclosed injury that ended his snowboarding career and appears to suffer from a lack of self