Kurama would most certainly be considered the brains of the group, though Hiei is very intelligent, his fighting style is no where near as analytical, patient or as subtle as Kurama's. He is a spirit fox who has merged with a human body, the body of Shuuichi Minamino. After living as Shuuichi Minamino for so long, and experiencing what its like to be mothered again, he has grown to care for his human family, and will do whatever is necessary to protect them, as though they were his real family. Kurama is very witty, thoughtful and sophisticated, with the largest vocabulary of all of the team, which is proven when he rivals Kaito. You should aim to speak clearly and sound well-versed.

His voice is medium to low, but he speaks quite softly and makes his voice a bit higher than what it really is. Something that bothers me about Kurama's voice, however, is that it does change slightly throughout the series, but for the majority of the series, it sounds a certain way. He is voice by John Burgmeier. I am fine with either impressions, but this is the voice you should try to imitate:

https://www.youtube.com/watch?v=PV0pvh3Xk3w