- His mother, a choreographer and actress, performed in Starlight Express while she was pregnant with him.
- Brother Harvey is a gymnast for Cirque de Soleil.
- Attended the Big Little Theatre School in Bournemouth, England.
- Is a founding member of improvisational comedy group Chuckle Duster.
- Accidentally stabbed himself through the elbow during the filming of Atlantis.
- Supported Children In Need, a charity run by the BBC, by appearing on their live telethon in 2013.
- Sam Donnelly — Brother
- Harvey Donnelly — Brother
- Finn Donnelly — Brother
- Birth Name: Jack Donnelly
- Birth Place: Bournemouth, Dorset, England
- Profession: Actor
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TVGuide.com editors break down theories about what's coming up on The Walking Dead