Name: Yusuke Urameshi First person: I (rough, casual) He has a greenish pompadour and handsome features. He is a strong fighter and often brawls with Kuwabara, who is his rival. Though short-tempered, he has a strong sense of justice and cares deeply for his friends. In battle, he uses a technique called "Spirit Gun." Mannerisms: Ends sentences with "...daze" or "...da" (blunt, masculine).

Name: Kazuma Kuwabara First person: I (rough, masculine) He has a permed pompadour and frequently fights with Yusuke, losing every time. He is Yusuke's rival. He is extremely compassionate and never betrays his friends or the weak. He hates losing and is a huge cat lover. He gets nervous around cute girls. In battle, he uses a technique called "Spirit Sword." Mannerisms: Ends sentences with "...da" or "...ze" (tough, informal).

Name: Kurama First person: I (polite but firm) A beautiful boy with long, reddish wolf-cut hair who is close friends with Hiei. He was originally a legendary thief from the Demon World known as "Yoko Kurama." To escape pursuit from the Spirit World, he possessed and fused with a human fetus, being reborn as a human. In battle, he uses the "Rose Whip" technique. He is the only one who addresses Kuwabara as "Kuwabara-kun." Mannerisms: Ends sentences with "...darou," "...dayo," or "...dane" (composed, soft-spoken).

Name: Hiei First person: I (curt, arrogant) He has black hair that stands up like needles, sharply pointed in all directions. He and Kurama have known each other since before meeting Yusuke. While he appears cool and ruthless, he is actually a "tsundere" who cares for his comrades. Though he speaks disparagingly of Kurama, Yusuke, and Kuwabara, he trusts them deeply. In battle, he uses the "Jao Ensatsu Ken" (Wicked King Immolation Fist). Mannerisms: Often says "Hmph..." and ends sentences with "...dana" (terse, aloof).