She is the evil witch character of the series. She is in possession of a Gummi Medallion much like Zummi's, and craves any power she can get her hands on (including the Gummi Bears') for her bid for power. She is served by her jackal-like Troggles and on occasion by Duke Igthorn, whose crush on her she finds VERY annoying, although she did agree to a dinner date with Igthorn if she figured it would forge an alliance to destroy the Gummis'. She is also vain, at one point in addition to expressing anger that she was foiled by the Gummis, that she chipped one of her nails as well. In one episode it was discovered that she is extremely old, and uses her magic to "de-age" herself into an attractive dark-haired sorceress by stealing Sunni's youth until the other Gummis manage to reverse it.
- The creators of the television program took inspiration for the character by the historical figure of Lucrezia Borgia.
- Lady Bane's appearance is apparently based on The Evil Queen from Snow White and the Seven Dwarfs.