Celia ImrieSelf - Narrator Thomas FrithSelf - Contestant Lyn KendallSelf - British Mensa Gifted Child Consultant Simon BlairSelf - Competition Quiz Master Giovanni TrevisanSelf - Contestant Neha NarendranSelf - Contestant Mihail Iulian BarascuSelf - Contestant Jack GranthamSelf - Contestant Sasha GordonSelf - Contestant Jasamrit RahalaSelf - Contestant Richard OsmanSelf - Presenter Rubaiyat RahmanSelf - Contestant Sharon DanielSelf - Contestant Tudor Mendel-IdowuSelf - Contestant Sophie ThakeSelf - Contestant Cuneyd KahramanSelf - Contestant HarrisonSelf - Contestant Curtis EltonSelf - Contestant Aliyah GarfieldSelf - 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 Alan CarrSelf - Contestant Aisling BeaSelf - Contestant Rachel RileySelf - Contestant Krishnan Guru-MurthySelf - Contestant Rick EdwardsSelf - Contestant Shazia MirzaSelf - Contestant Charlotte HawkinsSelf - 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 
