Bio:

Sir Isaac is Star's most trusted knight. He often leads the troops in combat and fights with strength and heart. Never afraid to back down from a fight and usually gets frustrated when he's losing, he just never knows when to quite as he is pretty stubborn and refuses to lose. He is prideful and sometimes a bit of a show off.

Voice Type:

For Isaac, any voice tone like Roy (Fire Emblem) from the actual SmashBros Ultimate game or similar will suffice.