Leane is a supporting character in the anime Beast Tamer. She was originally a member of the hero Arios's party, serving as the group's mage. Physically, she has long purple hair and purple eyes, and she is typically seen wearing a mage outfit with a large, witch-like hat. Her magical ability is considerable; she is a highly accomplished wizard capable of casting a wide array of spells, and she openly considers herself to be the strongest magician in the world.

In terms of personality, Leane is haughty and arrogant. She looks down on those she considers weaker or beneath her, a trait she shares with her former party members. She is self-centered and highly competitive, and she treats the protagonist, Rein Shroud, with contempt, viewing him as useless during their time together in the hero's party. After the hero's party disbands due to Arios losing his status as a hero, Leane is later betrayed by both Arios and Monica. Monica uses a cursed artifact called the Dark Crystal to stab Leane, transforming her into a monstrous demon. She is later killed by Rein, which causes her to revert to her original form.

Leane's primary motivation is her own self-importance and desire to be recognized as a powerful mage. She values status and looks down on anyone she perceives as beneath her. Her role in the story is as an antagonist and an obstacle that originates from Rein's past. Her key relationships are primarily negative: she is allied with Arios and Monica but is ultimately betrayed by them. Her relationship with Rein is one of disdain and mockery. She shows no significant character development, remaining arrogant and unrepentant until her death. Her notable ability is her mastery of magic, which she uses in combat and to bolster her own sense of superiority.