© 2026 The Couch Critic
Status
Returning Series
Release
1964 - Present
Seasons / Eps
62 / 1173
Streaming availability by country
We couldn't find any streaming, rent, or buy options for this content in US
Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.
135 Cast Members
Michael Mosley
Self - Presenter
6 Episodes
Paul Vaughan
Narrator (voice)
6 Episodes
Alice Roberts
Self - Presenter
4 Episodes
Hannah Fry
Self - Presenter
3 Episodes
Richard Feynman
Himself
2 Episodes
Professor Brian Cox
Presenter
3 Episodes
Giles Yeo
Presenter
3 Episodes
Xand van Tulleken
Presenter
2 Episodes
David Attenborough
Self
1 Episodes
Steven Mackintosh
Himself - Narrator
2 Episodes
Kevin Fong
Self - Presenter
2 Episodes
Michio Kaku
2 Episodes
Kelly Hunter
Herself - Narrator
2 Episodes
Helen McCrory
Narrator
2 Episodes
Helen Czerski
Self - Presenter
2 Episodes
Iain Stewart
Self - Presenter
2 Episodes
David Lutyens
1 Episodes
Dilly Barlow
Narrator
1 Episodes
Jack Fortune
Narrator
1 Episodes
Richard Branson
1 Episodes