Kit Harington

as Robert Catesby

Liv Tyler

as Anne Vaux

Mark Gatiss

as Lord Robert Cecil

Peter Mullan

as Father Henry Garnet

Shaun Dooley

as Sir William Wade

Tom Cullen

as Guy Fawkes

Edward Holcroft

as Thomas Wintour

Robert Emms

as Father John Gerard

Derek Riddell

as King James I

Pedro Casablanc

as Constable of Castille