Season 1
S1.E1 ∙ Bill OddieS1.E2 ∙ Amanda RedmanS1.E3 ∙ Sue JohnstonS1.E4 ∙ Jeremy ClarksonS1.E5 ∙ Ian HislopS1.E6 ∙ Moira StuartS1.E7 ∙ David BaddielS1.E8 ∙ Lesley GarrettS1.E9 ∙ Meera SyalS1.E10 ∙ Vic Reeves
Season 2
S2.E1 ∙ Jeremy PaxmanS2.E2 ∙ Sheila HancockS2.E3 ∙ Stephen FryS2.E4 ∙ Julian ClaryS2.E5 ∙ Jane HorrocksS2.E6 ∙ Gurinder Chadha
Season 3
S3.E1 ∙ Barbara WindsorS3.E2 ∙ Robert LindsayS3.E3 ∙ Colin JacksonS3.E4 ∙ David TennantS3.E5 ∙ David DickinsonS3.E6 ∙ Nigella LawsonS3.E7 ∙ Jeremy IronsS3.E8 ∙ Julia Sawalha
Season 4
S4.E0 ∙ Nicky CampbellS4.E1 ∙ Natasha KaplinskyS4.E2 ∙ John HurtS4.E3 ∙ Griff Rhys JonesS4.E4 ∙ Carol VordermanS4.E5 ∙ Alistair McGowanS4.E6 ∙ Graham NortonS4.E7 ∙ Matthew Pinsent
Season 5
S5.E1 ∙ Patsy KensitS5.E2 ∙ Boris JohnsonS5.E3 ∙ Jerry SpringerS5.E4 ∙ Esther RantzenS5.E5 ∙ Ainsley HarriottS5.E6 ∙ David SuchetS5.E7 ∙ Jodie KiddS5.E8 ∙ Laurence Llewelyn-Bowen
Season 6
S6.E1 ∙ Rory BremnerS6.E2 ∙ Fiona BruceS6.E3 ∙ Rick SteinS6.E4 ∙ Zoe WanamakerS6.E5 ∙ Kevin WhatelyS6.E6 ∙ Davina McCallS6.E7 ∙ Chris MoylesS6.E8 ∙ Kate HumbleS6.E9 ∙ David MitchellS6.E10 ∙ Kim CattrallS6.E11 ∙ Martin Freeman
Season 7
S7.E1 ∙ Bruce ForsythS7.E2 ∙ Rupert EverettS7.E3 ∙ Dervla KirwanS7.E4 ∙ Monty DonS7.E5 ∙ Rupert Penry-JonesS7.E6 ∙ Alexander ArmstrongS7.E7 ∙ Jason DonovanS7.E8 ∙ Hugh QuarshieS7.E9 ∙ Alan Cumming
Season 8
S8.E1 ∙ June BrownS8.E2 ∙ J K RowlingS8.E3 ∙ Sebastian CoeS8.E4 ∙ Larry LambS8.E5 ∙ Emilia FoxS8.E6 ∙ Alan CarrS8.E7 ∙ Robin GibbS8.E8 ∙ Richard MadeleyS8.E9 ∙ Len GoodmanS8.E10 ∙ Tracey Emin
Season 9
S9.E1 ∙ Samantha WomackS9.E2 ∙ Gregg WallaceS9.E3 ∙ Patrick StewartS9.E4 ∙ Annie LennoxS9.E5 ∙ Hugh DennisS9.E6 ∙ Alex KingstonS9.E7 ∙ William RoacheS9.E8 ∙ Celia ImrieS9.E9 ∙ John BarnesS9.E10 ∙ John Bishop
Season 10
S10.E1 ∙ Una StubbsS10.E2 ∙ Nigel HaversS10.E3 ∙ Minnie DriverS10.E4 ∙ Lesley SharpS10.E5 ∙ Gary LinekerS10.E6 ∙ Nick HewerS10.E7 ∙ Nitin GanatraS10.E8 ∙ Sarah MillicanS10.E9 ∙ Marianne FaithfullS10.E10 ∙ John Simpson
Season 11
S11.E1 ∙ Julie WaltersS11.E2 ∙ Brian BlessedS11.E3 ∙ Tamzin OuthwaiteS11.E4 ∙ Brendan O'CarrollS11.E5 ∙ Sheridan SmithS11.E6 ∙ Mary BerryS11.E7 ∙ Martin ShawS11.E8 ∙ Reggie YatesS11.E9 ∙ Billy ConnollyS11.E10 ∙ Twiggy
Season 12
S12.E1 ∙ Paul HollywoodS12.E2 ∙ Jane SeymourS12.E3 ∙ Derek JacobiS12.E4 ∙ Jerry HallS12.E5 ∙ Gareth MaloneS12.E6 ∙ Anne ReidS12.E7 ∙ Frank GardnerS12.E8 ∙ Anita RaniS12.E9 ∙ Mark GatissS12.E10 ∙ Frances De La Tour
Season 13
S13.E1 ∙ Danny DyerS13.E2 ∙ Amanda HoldenS13.E3 ∙ Liz BonninS13.E4 ∙ CherylS13.E5 ∙ Ricky TomlinsonS13.E6 ∙ Sir Ian McKellenS13.E7 ∙ Greg DaviesS13.E8 ∙ Warwick DavisS13.E9 ∙ Sunetra SarkerS13.E10 ∙ Sophie Raworth
Season 14
S14.E1 ∙ Charles DanceS14.E2 ∙ Craig Revel HorwoodS14.E3 ∙ Clare BaldingS14.E4 ∙ Adil RayS14.E5 ∙ Emma WillisS14.E6 ∙ LuluS14.E7 ∙ Fearne CottonS14.E8 ∙ Noel ClarkeS14.E9 ∙ Lisa HammondS14.E10 ∙ Ruby Wax
Season 15
S15.E1 ∙ Michelle KeeganS15.E2 ∙ Olivia ColmanS15.E3 ∙ Lee MackS15.E4 ∙ Boy GeorgeS15.E5 ∙ Shirley BallasS15.E6 ∙ Marvin HumesS15.E7 ∙ Robert RinderS15.E8 ∙ Jonnie Peacock
Season 16
S16.E1 ∙ Daniel RadcliffeS16.E2 ∙ Naomie HarrisS16.E3 ∙ Jack and Michael WhitehallS16.E4 ∙ Kate WinsletS16.E5 ∙ Katherine RyanS16.E6 ∙ Paul MertonS16.E7 ∙ Sharon OsbourneS16.E8 ∙ Mark Wright
Season 17
Season 18
S18.E1 ∙ Josh WiddicombeS18.E2 ∙ Judi DenchS18.E3 ∙ Alex ScottS18.E4 ∙ Joe LycettS18.E5 ∙ Pixie LottS18.E6 ∙ Joe SuggS18.E7 ∙ Ed Balls
Season 19
S19.E1 ∙ Sue PerkinsS19.E2 ∙ Richard OsmanS19.E3 ∙ Matt LucasS19.E4 ∙ Anna Maxwell MartinS19.E5 ∙ Ralf Little
Season 20
Who Do You Think You Are? (2004)
Celebrities study their lineages and family trees, usually learning surprising secrets they never knew about their families.