Hassan | Ahmed | A British-Asian student kidnapped by the far-right. |
Sidonie | Baker | A competent MI5 agent. aka: Sid. |
Roger | Barrowby | Bradley's acquaintance. aka: Barrowboy. |
Geoffrey | Boycott | A former Test cricketer. |
Leonard | Bradley | A former head of the Limitations Committee. |
Gordon | Brown | Prime Minister of the United Kingdom. |
David | Cartwright | River's grandfather. A retired MI5 officer. |
Isobel | Cartwright | River's mother. |
River | Cartwright | A British MI5 agent. |
Sam | Chapman | Head of the intelligence service's internal security force. |
Russell T. | Davies | Welsh screenwriter and television producer. |
Simon | Dean | A tele-salesman for a life-assurance company. |
Nick | Duffy | Head of MI5's internal affairs and tactical unit. |
John | Falstaff | One of the most famous comic characters in all English literature. |
Nicholas | Frost | A British actor, author, comedian, painter, producer. |
Marjorie T. | Greene | American politician. |
Mahmud | Gul | 2nd Desk at Pakistan's Directorate for Inter-Services
Intelligence. |
Louisa | Guy | An agent. |
Min | Harper | An agent. |
Adolf | Hitler | German politician. |
Roderick | Ho | An obnoxious computer expert and former hactivist. |
Dan | Hobbs | One of Nick Duffy's crew. |
Robert | Hobden | A journalist. |
Roy | Jenkins | A British politician, historian and writer. |
Peter | Judd | A rising right-wing politician. |
Buster | Keaton | American actor and filmmaker. |
David | Kelly | A Welsh scientist and authority on biological warfare. |
Jackson | Lamb | The unpredictable leader of a group of spies. |
Bruce | Lee | Hong Kong-American actor, martial artist. |
Struan | Loy | An agent. |
Joanna | Lumley | A British actress and former model. |
W. Somerset | Maugham | English playwright, novelist, short story writer. |
Jed | Moody | One of the MI5 agents. |
Wolfgang A. | Mozart | Austrian composer of the Classical period. |
Charles | Partner | A double agent at the top of MI5. |
Daniel | Radcliffe | An English actor. |
Gregory | Simmonds | A wealthy businessman with right-wing. |
Sebastian | Sleek | Robert Hobden's acquaintance. |
Timothy | Spall | An English actor. |
Dave | Spencer | A well-known American journalist. |
Catherine | Standish | The office administrator and a recovering alcoholic. |
Diana | Taverner | The Deputy Director-General of MI5. aka: Lady Di. |
Ingrid | Teary | The Director General of MI5. |
James | Webb | An MI5 agent based at Regent's Park headquarters. aka: Spider. |
Andrew Lloyd | Webber | English theatre composer. |
Kay | White | Catherine's floormate. |
Curly | | The one who murdered Moe. |
Kim | | A novel by Nobel Prize-winning English author Rudyard Kipling. |
Larry | | Curly's acquaintance. |
Max | | A barman. |
Moe | | An undercover agent. aka: Alan Black. |
Tom | | Taverner's boy. |