Merritt Wever plays Ruby and Domhnall Gleeson plays Billy in HBO’s ‘Run‘. The supporting cast includes Phoebe Waller-Bridge as Laurel.
Main cast
- Ruby RichardsonMerritt Wever1Main
- Billy JohnsonDomhnall Gleeson1Main
Supporting cast
- LaurelPhoebe Waller-Bridge1Supp
- LarryRichie Coster1Supp
- BabeTamara Podemski1Supp
- EllenArchie Panjabi1Supp
- IanShaun Healy1Supp
Guest & voice
- FionaLolly Adefope1Guest
- TinaSian Clifford1Guest
- MaryRebecca Front1Guest
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About this cast
Run is a 2020 HBO romantic thriller series starring Merritt Wever as Ruby, a woman who receives a text to ‘Run’ with her former flame Billy (Domhnall Gleeson). The seven-episode series follows their spontaneous cross-country journey and the secrets that surface along the way.
FAQs
Who plays Ruby in Run?
Merritt Wever plays Ruby Richardson, the lead character in HBO’s Run.
Who plays Billy in Run?
Domhnall Gleeson plays Billy Johnson, Ruby’s former flame and co-lead in the series.
Is Run based on a true story?
No, Run is a fictional series created by Vicky Jones, inspired by the idea of escaping routine but not based on real events.
How many episodes are in Run?
Run has one season consisting of 7 episodes, originally aired on HBO in 2020.
Where can I watch Run in the UK?
In the UK, Run is available on Sky Comedy and NOW TV (streaming).
Sources & where to watch: IMDb · Wikipedia · Where to watch (JustWatch UK) · Updated June 2026