Stone-faced and aloof as he may be, he isn't gloomy; he talks enthusiastically about matters of interest to him. He possesses an expert ability to learn and improve his fighting skills. For his inordinate gift, he has earned the enmity of Seifer, an older student, who regards him with jealousy. The scar on his forehead resulted from Seifer's gunblade during an intense training session. The last name, Leonheart, was the name of one of the main characters from an earlier 8-bit fantasy which never made it to the U.S.

The Taciturn and recluctant hero. A cadet in SeeD, the special combat unit of the Balamb Garden Military Academy. his aloof and anti-social behaviour makes him appear selfish and lacking a sense of team unity. Squall dislikes having others involved in his affairs, and is bast describes as a lone wolf.