--- born: 1963 category: Extremism & Violent Networks created: 2026-05-22 location: England, United Kingdom summary: Charlie Sargent co-founded Combat 18 in 1992, was convicted of murder at Chelmsford Crown Court in January 1998 for the stabbing death of Christopher Castle, and was publicly identified by ITV's World in Action and a Statewatch investigation as a Special Branch informant, though he never confirmed the allegation. tags: - Person - NeoNazi - UK - CombatEighteen - BloodAndHonour - SpecialBranch - Murder - Informant updated: 2026-05-22 --- Charlie Sargent co-founded [Combat 18](/organizations/combat-18/) in 1992 and led the organisation through its most violent period of the mid-1990s, maintaining documented ties to the Ulster Defence Association and overseeing a brutal internal culture that ended in murder. He was convicted of the murder of Christopher Castle at Chelmsford Crown Court in January 1998 and sentenced to life imprisonment. In the months following his conviction, an ITV documentary and multiple investigative reports identified him as a Special Branch informant, though no official confirmation has ever been provided and Sargent himself did not confirm the allegation.[^1] ### Founding of Combat 18 In early 1992, the British National Party formed Combat 18 as a stewarding group to protect its events from anti-fascists. The organisation's name refers to the initials of [Adolf Hitler](/people/adolf-hitler/) (A=1, H=8). Sargent was among the founding figures alongside Wilf Browning. C18 split from the BNP in 1993 when Sargent rejected the party's electoralist strategy in favour of open paramilitarism. Following the death of Ian Stuart Donaldson, frontman of the neo-Nazi band Skrewdriver and Sargent's former flatmate, in a car crash in September 1993, C18 took control of [Blood and Honour](/organizations/blood-and-honour/), Donaldson's neo-Nazi music promotion network, and its affiliated label, ISD Records. Blood and Honour's lucrative white-power music business became a significant source of C18's income.[^2] ### UDA Connections and Paramilitarism C18 developed documented ties to the Ulster Defence Association during the early 1990s. Sargent was acquainted with Johnny Adair, the UDA's Lower Shankill Road commander, who attended Combat 18 events in England. C18 provided manpower to counter demonstrations by Irish republican supporters and maintained weapon-related contacts with loyalist networks in Northern Ireland. According to a Statewatch investigation, the World in Action documentary that exposed Sargent as an informant reported that his information supplied to Special Branch related specifically to C18's UDA connections.[^3] C18 was also linked to a 1997 campaign in which parcel bombs were sent from Denmark to anti-fascist activists and celebrities in the United Kingdom. The Danish dimension connected C18 to the European neo-Nazi network around Blood and Honour Scandinavia and White Aryan Resistance networks on the continent. ### Internal Feud and the Castle Murder A factional dispute between Sargent and Browning emerged in the mid-1990s centred on control of the Blood and Honour music revenues and mutual accusations of police informing. The rival faction led by Browning sought Sargent's expulsion and demanded the return of the C18 membership list. The confrontation escalated fatally in October 1997 when Christopher Castle, a [Blood and Honour](/organizations/blood-and-honour/) supporter acting as an intermediary between the two factions, went to Sargent's home. Sargent's associate Martin Cross stabbed Castle to death with a nine-inch knife in what the court described as "a violent and cowardly attack." Sargent was convicted as a principal in the murder. Both Sargent and Cross were convicted at Chelmsford Crown Court in January 1998 and sentenced to life imprisonment.[^1] ### The Informant Allegations Anti-fascist researchers had documented suspicious patterns in C18 from the early 1990s: following street clashes in central London, several senior C18 activists were observed being driven away in unmarked police cars.[^3] The allegations crystallised publicly in April 1998 when ITV's World in Action programme, "Playing with Fire," broadcast evidence of Sargent's role as a Special Branch informant. The timing placed the broadcast a few months after his January 1998 murder conviction. The programme presented two specific evidential items. First: during the planning of the 1997 Danish letter-bomb campaign, C18's leadership withheld an updated target list from Sargent because they suspected him of leaking information; an outdated version of the target list subsequently appeared in the press. An undercover police officer who had infiltrated C18 confirmed to the programme that the names could only have come from Sargent. Second: the programme showed that C18 was allowed to operate through its campaign of arson and terror attacks because Sargent was working for Special Branch and providing intelligence on the UDA's English mainland contacts.[^3] The historian and researcher Larry O'Hara of Notes From The Borderland has argued that the confirmed state asset in C18 was not Sargent but Darren Wells (alias McKenzie), who co-authored the C18 booklet with Browning and acknowledged in 2002 that he had been working as a Searchlight/Special Branch informant, handled through Nick Lowles of [Searchlight Magazine](/organizations/searchlight-magazine/). O'Hara's analysis holds that the genuine asset (Wells) helped create conditions of mutual suspicion between Browning and Sargent, in a dynamic consistent with the FBI's [COINTELPRO](/programs/cointelpro/) disruption playbook, and that this suspicion was what escalated into the murder of Castle. On O'Hara's account, Sargent and Browning were both manipulated rather than either being a state agent themselves.[^4] The Observer newspaper's Henry Macdonald published an article on 5 April 1998 alleging that Sargent was a paid informer, adding to the documentary record. No evidence has been produced to definitively prove or disprove the allegation against Sargent personally. It has never been confirmed by any official body and Sargent has not spoken publicly about it.[^5] ### State Intelligence and the Myatt Non-Prosecution The Sargent informant question is directly relevant to the broader question of why [David Myatt](/people/david-myatt/), C18's attributed "ideological heavyweight," was never prosecuted for terrorism. If Sargent was indeed supplying Special Branch with intelligence on C18 and UDA activities, he would have reported on Myatt's role and activities within C18's circles throughout the mid-1990s. That reporting would constitute inadvertent documentation of Myatt's conduct by state agents with knowledge of events. The absence of any prosecution of Myatt despite that presumed intelligence record has not been officially explained. It may reflect a prosecutorial decision that the available evidence did not meet the standard for terrorism charges, or it may reflect operational considerations about which intelligence assets and methods would be exposed in a trial. The public record does not resolve the question.[^4] ### Aftermath Sargent and Cross remained in prison following their life sentences. The C18 organisation fragmented after their convictions. Sargent's brother Steve Sargent remained in the neo-Nazi movement and co-founded the National Socialist Movement (UK, 1997) with [David Myatt](/people/david-myatt/) in June 1997, while Charlie Sargent's case was still proceeding through the courts. [^1]: Statewatch. "UK: C18 leaders get 'life' for murder," 1998. https://www.statewatch.org/statewatch-database/uk-c18-leaders-get-life-for-murder/ [^2]: Lowles, Nick. *White Riot: The Violent Story of Combat 18.* Milo Books, 2001. [^3]: Statewatch. "UK: C18 leader was police informer," 1998. https://www.statewatch.org/statewatch-database/uk-c18-leader-was-police-informer/ [^4]: Notes From The Borderland (Larry O'Hara). "Combat 18 and MI5: Some Background Notes." https://borderland.co.uk/combat-18-mi5-some-background-notes/ [^5]: Macdonald, Henry. "C18 leader 'was paid informer.'" Observer, 5 April 1998.