* ActorAllusion: ''Series/SaturdayNightLive'', where Julia Louis-Dreyfus was a cast member in the '80s, runs a sketch mocking Selina, which she defuses by appearing on the show herself.
* DevelopmentHell: In 2007 ABC rejected a proposed American version of ''The Thick of It'' that would have centered around a newly elected congressman. Various networks expressed intererest in adapting ''The Thick of It'' after ABC passed, with HBO eventually picking the show up and changing the lead character from congressman to Vice President.
* FakeAmerican: Creator/HughLaurie appears in season 4, playing Tom James, an American politician.
* FakeNationality: The Finnish Prime Minister and her husband are played by the British Sally Phillips and the Canadian Dave Foley.
* PlayingAgainstType: Patton Oswalt as a sleazy lech and [[spoiler:serial sexual abuser]].
* YouLookFamiliar: Anna Chlumksy, who plays Amy, previously played Liza Weld, a similar character in ''Film/InTheLoop'', Iannucci's previous work.