Doug McKenna

Self - Detective Superintendent, Anti-Terrorist Branch

Tony Blair

Self - Prime Minister 1997 - 2007

Peter Clarke

Self - Deputy Assistant Commissioner, Head of Anti-Terrorist Branch

Eliza Manningham-Buller

Self - M15 Inspector General 2002 - 2007

Dan Biddle

Self - London Underground Attack Survivor

Cliff Todd

Self - Principal Forensics Investigator