„Believe it or not, BBC execs reckon there is not enough gay drama on the Beeb [...] You might think that it's become impossible to switch the telly on without seeing two men locked in a naked clinch, or in drag, or snogging.“ Zitiert nach: Christopher Stevens: No plot but lots of disco dancing! It's the Beeb's new gay spy drama. In: Daily Mail vom 10. November 2015.
„wonderful and infuriating in equal measure […] Has there ever been a television series that's frustrated as much as London Spy (BBC 2)? Over five weeks this contemporary thriller has scaled giddy heights and then plumbed ludicrous depths, gone from being completely gripping to turgid as hell, thrown up single scenes of startling brilliance then followed them with some preposterous self-indulgence […] London Spy's potentially great script was in desperate need of some doughty editing.“ Zitiert nach: Benji Wilson: London Spy, episode 5, review: 'frustrating'. In: The Daily Telegraph vom 8. Dezember 2015.
theguardian.com
Boris Starling: Drama feeds off real-life crime, but has London Spy gone too far? In: The Guardian. 12. November 2015, ISSN0261-3077 (englisch, theguardian.com [abgerufen am 13. Februar 2023]).
„London Spy has lived in the gap between plot and subtext – between what it's about, and what it's really about. It's really about self-knowledge, and how lovers try to know each other while lying about themselves.“ Zitiert nach: Jack Searle: Is the final episode of „London Spy“ doomed to let us down?. In: The Guardian vom 7. Dezember 2015.
Boris Starling: Drama feeds off real-life crime, but has London Spy gone too far? In: The Guardian. 12. November 2015, ISSN0261-3077 (englisch, theguardian.com [abgerufen am 13. Februar 2023]).