Cassidy Little

as Barnes

as Gary 'Cammy' Campbell (4 episodes)

as Andy Brooks (2 episodes)

as SRT Agent Genki

as British Spy

as Morgan (1 episode)

as Morgan

as Veteran (2 episodes)

as Self (1 episode)

as Edward Rourke (1 episode), as Frank Thorpe (1 episode)

as Jay Nevin (1 episode)

as Duncan Corrigan (1 episode)