Mathew Kendrick publicly serves as assistant to DREAM chairman Ryan Gladstone while secretly operating as Leader A of the Dominators, partnering with Lucy McClain (Leader B). He balances this dual role, managing Team Estrella as an assistant manager and commanding the antagonistic Dominators group.

Physically tall and thin, Mathew has long blond hair covering his right eye and wears glasses. His civilian attire favors business clothing, notably featuring a distinctive purple sport coat. As Leader A, his appearance transforms significantly: he dons a dual-colored silver and brown mask with orange visors, a white jacket with red designs, blue pants, and brown shoes, his blond hair slicked back.

Within the Dominators, Mathew trains members and coordinates attacks under his Leader A alias. He directs assaults on BeyWheelz tryouts and issues warnings to Team Estrella about impending threats, actions supporting the Dominators' goal to monopolize wheeling by eliminating competition. His allegiance remains firmly with Ryan Gladstone's ideals, including the objective to control the New World dimension through the Judgement Bey tournament.

Mathew's known narrative involvement peaks during the final conflict, where he and Lucy battle Team Estrella members Jin Ryu and Leon Fierce, resulting in their defeat.