Brian Magowan
— Mat Donovan / Mat the Thrasher
Fred O'Donovan
— Arthur O'Connor
Kathleen Murphy
— Norah Lahy
Arthur Shields
— Phil Lahy
J.M. Carre
— Pender
Breffni O'Rourke
— Billy Heffernan
Valentine Roberts
— Father O'Carroll
Patrick O'Donnell
— Barney Broderick / 'Wattletoes'
Dermot O'Dowd
— Maurice Kearney
George Larchet
— Arthur Lowe
Charles Power
— Sir Garrett Butler
Nora Clancy
— Mary Kearney
Miss Rooney
— Nellie Donovan
Moria Breggni
— Peg Brady
Cyril Cusack
— Brian's child