As of July 2026, Who Do You Think You Are? Season 21 aired in 2024 with 7 episodes — streaming now on BINGE. Full episode guide and where to watch below.
Who Do You Think You Are? Season 21 poster
← Back to Who Do You Think You Are?

Who Do You Think You Are? Season 21

2024 7 Episodes Documentary · Family ⭐ 7/10

Who Do You Think You Are? Season 21 has built a real following on and among viewers who want documentaries that actually inform. Across 1 season, the show has had time to find its rhythm and keep it. With 27 viewer ratings on TMDB, this is not a title flying under the radar. The access secured here is hard to overstate. There is no real reason to keep putting it off.

Whatever else is competing for your attention this week, Who Do You Think You Are? Season 21 is worth clearing space for. Who Do You Think You Are? Season 21 resists the urge to oversimplify a subject that deserves better. Stars delve into their family history to find moving, funny and extraordinary stories. It was aired in 2024. The restraint in Who Do You Think You Are? Season 21 is what makes it trustworthy — it does not need to editorialise to make its point. It knows exactly what it is, and does not try to be anything else.

Documentary fans who value serious storytelling will find Who Do You Think You Are? Season 21 essential viewing. It stands on its own even without an obvious comparison point. It is a manageable watch, easy to fit into a single week. The subject drives every choice here, not the other way around. The kind of production you finish and immediately want to read more about.

📡 Where to Watch Who Do You Think You Are? Season 21

🇦🇺 Australia
🇬🇧 United Kingdom
TV Butler Pro app
🎩 TV Butler Pro
You find it. Your history remembers it.

🎬 Who Do You Think You Are? Season 21 — Episode Guide

E1
Vicky McClure
2024-08-15
Vicky McClure goes on an emotional journey to Taiwan to find out what happened when her great-grandfather was captured as a prisoner of war in World War Two.
E2
Paddy McGuinness
2024-08-22
Paddy McGuinness uncovers his grandfather’s vital work in World War Two, how his other grandfather was involved in the Boer War and the family’s journey from Ireland to Bolton.
E3
Melanie Chisholm
2024-08-29
Melanie Chisholm is fascinated to discover that her ancestors include a moneylender, a campaigner for social reform and a family fleeing the famine in Ireland.
E4
Rose Ayling-Ellis
2024-09-05
Actor, presenter and deaf rights campaigner Rose Ayling-Ellis goes in search of her family history. She encounters a pub landlady and hunts for a rumoured Italian connection.
E5
Dame Jessica Ennis-Hill
2024-09-12
Jessica Ennis-Hill discovers the truth behind a family mystery and finds out about her Jamaican four-time great-grandfather’s journey from enslavement to land ownership.
E6
Olly Murs
2024-09-19
Olly Murs explores his grandfather’s Latvian roots, discovers his great-grandparents were circus performers, and how a wartime decision led to a tragic family estrangement.
E7
Gemma Collins
2024-09-26
Gemma Collins goes on an emotional journey discovering why her mother was fostered; connecting with a long-lost cousin; and finding out her Essex roots go back over 200 years.

📋 All Seasons of Who Do You Think You Are?

Season 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8

Never Lose Track of Who Do You Think You Are?

TV Butler Pro lets you search every streaming service in seconds, tracks what you've watched, and works completely free. No app download needed.

🎩 Try TV Butler Pro Free