Gladius is an officer of the Donquixote Pirates' Pica Army. gladius one piece. Due to his actions and role, he is a supporting antagonist during the Dressrosa Arc. Gladius is an officer of the Donquixote Pirates' Pica Army. gladius one piece. gladius one piece. I thought my husband was Beta Beta no Mi user, becasue his face, head Gladius: Bufalo: Baby 5: Vergo: "A couple was arrested. Gladius is an officer of the Donquixote Pirates' Pica Army. . Due to his actions and role, he is a supporting antagonist during the Dressrosa Arc. Due to his actions and role, he is a supporting antagonist during the Dressrosa Arc.