Films
* The Chronicles of Narnia: The Lion, the Witch and the Wardrobe (2005) as Edmund Pevensie
* The Chronicles of Narnia: Prince Caspian (2008) as Edmund Pevensie
* The Chronicles of Narnia: The Voyage of the Dawn Treader (2010) as Edmund Pevensie
* The Seventh Son (2014) as Tom Ward
* The King's Speech (2010) as Prince Albert (uncredited)
* A Street Cat Named Bob (2016) as Tom
* The Journey is the Destination (2016) as Daniel
* The Extraordinary Journey of the Fakir (2018) as Ajatashatru
Television
* The Golden Compass (2007) as Tony Makarios (miniseries)
* The Truth About Love (2012) as Alex (TV series)
* Wolfblood (2012-2014) as Rhydian (TV series)
* Our Zoo (2014) as David Chipperfield (TV series)
* The Bastard Executioner (2015) as Father Ruskin (TV series)
* Will (2017-2018) as Richard Field (TV series)
* The Spanish Princess (2019) as Prince Arthur (TV series)
This list includes some of his notable roles, but may not be completely exhaustive.