<P> After graduating from college, Stroma was cast in the role as Cormac McLaggen first in Harry Potter and the Half Blood Prince and then in Harry Potter and the Deathly Hallows--Parts 1 and 2 . </P> <P> Stroma played the role of Cool Brett in the crime - thriller film 4.3. 2.1 . </P> <P> Stroma appeared in the direct - to - DVD romantic film A Cinderella Story: Once Upon a Song as a British student, Luke Morgan . He played opposite Lucy Hale as her love interest . </P> <P> He had a minor role in Pitch Perfect, a 2012 comedy about the world of collegiate a cappella . He played a radio station manager at the local college radio station . </P>

Who plays luke morgan in a cinderella story
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