Dame Dudical of Diamonds One of the four Knights of the Radical Land, along with Sir Sicknasty of Spades, Sir Cowabunga of Clubs, and the fallen Sir Hellacious of Hearts. Little else is known of her history, personality, or role.
She is apparently the only female member of the Radical Knights, and her suit is never overtly stated even in a formal setting. She is also the only person ever shown riding/commanding/piloting a helicopter-headed ent, though it is unclear whether this skill is unique to her, or whether the ents themselves need such direction.
She appeared with her allies during the Cumberland robot battle, possibly leaving the Radical Lands without any remaining Radical Knights.