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The Best Episodes of Who Do You Think You Are? Season 21

Every episode of Who Do You Think You Are? Season 21 ranked from best to worst. Discover the Best Episodes of Who Do You Think You Are? Season 21!

Binge this in 6h 41m•Peaking at 8.0/10

A British genealogy documentary series in which celebrities trace their ancestry, discovering secrets and surprises from their past.

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Episode Rankings

  1. #1 Fan Favorite
    Who Do You Think You Are? Season 21 Episode 4 - Rose Ayling-Ellis
    8.0/10(23 votes)

    S21:E4

    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.

    Director:Unknown
    Writer:Unknown

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  2. Who Do You Think You Are? Season 21 Episode 6 - Olly Murs
    8.0/10(22 votes)

    S21:E6

    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.

    Director:Unknown
    Writer:Unknown

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  3. Who Do You Think You Are? Season 21 Episode 5 - Dame Jessica Ennis-Hill
    7.9/10(17 votes)

    S21:E5

    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.

    Director:Unknown
    Writer:Unknown

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  4. Who Do You Think You Are? Season 21 Episode 1 - Vicky McClure
    7.8/10(29 votes)

    S21:E1

    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.

    Director:Unknown
    Writer:Unknown

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  5. Who Do You Think You Are? Season 21 Episode 2 - Paddy McGuinness
    7.3/10(23 votes)

    S21:E2

    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.

    Director:Unknown
    Writer:Unknown

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  6. Who Do You Think You Are? Season 21 Episode 3 - Melanie Chisholm
    7.2/10(22 votes)

    S21:E3

    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.

    Director:Unknown
    Writer:Unknown

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  7. Who Do You Think You Are? Season 21 Episode 7 - Gemma Collins
    6.6/10(21 votes)

    S21:E7

    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.

    Director:Unknown
    Writer:Unknown

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Season 21 Ratings Summary

"Rose Ayling-Ellis" is the best rated episode of "Who Do You Think You Are?" season 21. It scored 8/10 based on 23 votes. Directed by Unknown and written by Unknown, it aired on 9/5/2024. This episode is rated 0.0 points higher than the second-best, "Olly Murs".