Leader B is an antagonist in BeyWheelz. She is a mysterious Wheeler and the commander of the Dominators who plans to take over the Wheeler world with her Dagger Spine Lacerta. She is secretly Ryan Gladstone's assistant, Lucy McClain.
Leader B is tall, slim, fair skinned with pink hair that extends both above and behind her head. Her eyes are covered by her unique white mask with blue visor pupils. She wears a tan jacket with bronze strap locks and blue designs. She wears black pants that tuck into her tan boots.
Leader A and Leader B ordered the Domiantors to attack the Team Estrella tryouts, after they failed the Leaders appeared to warn Team Estrella of the coming days.
- Like Matthew, she strongly resembles Spectra Phantom from Bakugan.
- She is the only female antagonist and also the only non-male character to use a Balance Type in Beywheelz.
- She resembles Jessie from Pokémon.