The series follows John Porter, a former British Special Forces soldier, who is drafted back into service by Section 20, a fictional branch of the Secret Intelligence Service.
as John Porter
as Katie Dartmouth
as James Middleton
as Hugh Collinson
as Layla Thompson
as Danni Prendiville
as Diane Porter
as Maj. Jamal Ashkani / Latif
as Latif
as Col. Eleanor Grant
as Sgt. Damien Scott
as Sgt. Michael Stonebridge
as Sgt. Julia Richmond
