Quoc: Frank Stephenson Dillane (born 21 April 1991) is an English actor, best known for his portrayal of Nick Clark on Fear the Walking Dead (2015 -- 18), and for playing Tom Riddle in the film Harry Potter and the Half-Blood Prince (2009). He also appeared as Owen Coffin in the film In the Heart of the Sea (2015).

Answer this question based on the passage: who plays tom riddle in harry potter and the half blood prince?
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This is the relevant information: Frank Stephenson Dillane (born 21 April 1991) is an English actor, best known for his portrayal of Nick Clark on Fear the Walking Dead (2015 -- 18), and for playing Tom Riddle in the film Harry Potter and the Half-Blood Prince (2009). The answer is Frank Stephenson Dillane ( born 21 April 1991 ).