Celia ImrieSelf - Narrator Thomas FrithSelf - Contestant Lyn KendallSelf - British Mensa Gifted Child Consultant Giovanni TrevisanSelf - Contestant Jasamrit RahalaSelf - Contestant Jack GranthamSelf - Contestant Neha NarendranSelf - Contestant Simon BlairSelf - Competition Quiz Master Mihail Iulian BarascuSelf - Contestant Sasha GordonSelf - Contestant Richard OsmanSelf - Presenter Rubaiyat RahmanSelf - Contestant Tudor Mendel-IdowuSelf - Contestant Sharon DanielSelf - Contestant Cuneyd KahramanSelf - Contestant Sophie ThakeSelf - Contestant HarrisonSelf - Contestant Aliyah GarfieldSelf - Contestant Curtis EltonSelf - Contestant Hazelle Mendel-IdowuSelf - Contestant Felix BowyerSelf - Contestant Kale Cunningham-WalkerSelf - Contestant Ethan Cunningham-WalkerSelf - Contestant Nishi UggalleChild Genius team captain Jimmy CarrSelf - Contestant Sam WilsonSelf - Battlefield Expert MercedesSelf - Contestant Ieysaa Bin-SuhaylSelf - Contestant Lewis StuartSelf - Contestant Aisling BeaSelf - Contestant Alan CarrSelf - Contestant Rachel RileySelf - Contestant Krishnan Guru-MurthySelf - Contestant Rick EdwardsSelf - Contestant Charlotte HawkinsSelf - Contestant Shazia MirzaSelf - Contestant Jo BrandSelf - Contestant Vick HopeSelf - Contestant Paul BithreyDirector / Location Producer Christian CollertonDirector / Location Producer Alex Stockley von StatzerDirector / Location Producer Wes PollittDirector / Assistant Producer Garfield CarrottDirector / Location Producer Tanya FreedmanDirector / Location Producer Chris McLaughlinDirector / Location Producer Daniel FildesDirector / Location Producer Lucy LeveugleDirector / Productor / Cinematographer Mark SabenProductor ejecutivo Bex HevinghamAsistente de producción Samantha De AlwisProductor Melissa BrownProductor ejecutivo Leanne KleinProductor ejecutivo Stephen BryceProduction Designer Dom ClasbyProduction Designer Shell CoeAssistant Producer Guy HarrisSenior Producer Zara MarghamProducer: Competition Laura MarstonAssistant Producer Anna StricklandSeries Producer Aisling BrowneAssistant Producer Zinia ScroggsCompetition Producer Samuel SimonSeries Producer 
